1164 lines
34 KiB
Plaintext
1164 lines
34 KiB
Plaintext
#***************************************************************************
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# $Id$
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#
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# Copyright (C) 2008 by Daniel Stenberg et al
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose and without fee is hereby granted, provided
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# that the above copyright notice appear in all copies and that both that
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# copyright notice and this permission notice appear in supporting
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# documentation, and that the name of M.I.T. not be used in advertising or
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# publicity pertaining to distribution of the software without specific,
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# written prior permission. M.I.T. makes no representations about the
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# suitability of this software for any purpose. It is provided "as is"
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# without express or implied warranty.
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#
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#***************************************************************************
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# File version for 'aclocal' use. Keep it a single number.
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# serial 38
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dnl CARES_CHECK_COMPILER
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dnl -------------------------------------------------
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dnl Verify if the C compiler being used is known.
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AC_DEFUN([CARES_CHECK_COMPILER], [
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#
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compiler_id="unknown"
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compiler_num="0"
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#
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flags_dbg_all="unknown"
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flags_dbg_yes="unknown"
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flags_dbg_off="unknown"
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flags_opt_all="unknown"
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flags_opt_yes="unknown"
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flags_opt_off="unknown"
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#
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CARES_CHECK_COMPILER_DEC_C
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CARES_CHECK_COMPILER_HPUX_C
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CARES_CHECK_COMPILER_IBM_C
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CARES_CHECK_COMPILER_INTEL_C
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CARES_CHECK_COMPILER_GNU_C
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CARES_CHECK_COMPILER_LCC
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CARES_CHECK_COMPILER_SGI_MIPSPRO_C
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CARES_CHECK_COMPILER_SGI_MIPS_C
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CARES_CHECK_COMPILER_SUNPRO_C
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CARES_CHECK_COMPILER_TINY_C
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CARES_CHECK_COMPILER_WATCOM_C
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#
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if test "$compiler_id" = "unknown"; then
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cat <<_EOF 1>&2
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***
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*** Warning: This configure script does not have information about the
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*** compiler you are using, relative to the flags required to enable or
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*** disable generation of debug info, optimization options or warnings.
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***
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*** Whatever settings are present in CFLAGS will be used for this run.
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***
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*** If you wish to help the c-ares project to better support your compiler
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*** you can report this and the required info on the c-ares development
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*** mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
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***
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_EOF
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fi
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])
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dnl CARES_CHECK_COMPILER_DEC_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is DEC C.
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AC_DEFUN([CARES_CHECK_COMPILER_DEC_C], [
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AC_MSG_CHECKING([if compiler is DEC/Compaq/HP C])
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CURL_CHECK_DEF([__DECC], [], [silent])
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CURL_CHECK_DEF([__DECC_VER], [], [silent])
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if test "$curl_cv_have_def___DECC" = "yes" &&
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test "$curl_cv_have_def___DECC_VER" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="DEC_C"
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flags_dbg_all="-g -g0 -g1 -g2 -g3"
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flags_dbg_yes="-g2"
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flags_dbg_off="-g0"
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flags_opt_all="-O -O0 -O1 -O2 -O3 -O4"
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flags_opt_yes="-O1"
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flags_opt_off="-O0"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_GNU_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is GNU C.
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AC_DEFUN([CARES_CHECK_COMPILER_GNU_C], [
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AC_REQUIRE([CARES_CHECK_COMPILER_INTEL_C])dnl
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AC_MSG_CHECKING([if compiler is GNU C])
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CURL_CHECK_DEF([__GNUC__], [], [silent])
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if test "$curl_cv_have_def___GNUC__" = "yes" &&
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test "$compiler_id" = "unknown"; then
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AC_MSG_RESULT([yes])
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compiler_id="GNU_C"
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gccver=`$CC -dumpversion`
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gccvhi=`echo $gccver | cut -d . -f1`
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gccvlo=`echo $gccver | cut -d . -f2`
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compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
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flags_dbg_all="-g -g0 -g1 -g2 -g3"
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flags_dbg_all="$flags_dbg_all -ggdb"
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flags_dbg_all="$flags_dbg_all -gstabs"
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flags_dbg_all="$flags_dbg_all -gstabs+"
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flags_dbg_all="$flags_dbg_all -gcoff"
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flags_dbg_all="$flags_dbg_all -gxcoff"
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flags_dbg_all="$flags_dbg_all -gdwarf-2"
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flags_dbg_all="$flags_dbg_all -gvms"
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flags_dbg_yes="-g"
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flags_dbg_off="-g0"
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flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
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flags_opt_yes="-O2"
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flags_opt_off="-O0"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_HPUX_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is HP-UX C.
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AC_DEFUN([CARES_CHECK_COMPILER_HPUX_C], [
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AC_MSG_CHECKING([if compiler is HP-UX C])
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CURL_CHECK_DEF([__HP_cc], [], [silent])
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if test "$curl_cv_have_def___HP_cc" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="HP_UX_C"
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flags_dbg_all="-g -s"
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flags_dbg_yes="-g"
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flags_dbg_off="-s"
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flags_opt_all="-O +O0 +O1 +O2 +O3 +O4"
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flags_opt_yes="+O2"
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flags_opt_off="+O0"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_IBM_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is IBM C.
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AC_DEFUN([CARES_CHECK_COMPILER_IBM_C], [
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AC_MSG_CHECKING([if compiler is IBM C])
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CURL_CHECK_DEF([__IBMC__], [], [silent])
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if test "$curl_cv_have_def___IBMC__" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="IBM_C"
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flags_dbg_all="-g -g0 -g1 -g2 -g3"
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flags_dbg_yes="-g"
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flags_dbg_off=""
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flags_opt_all="-O -O0 -O1 -O2 -O3 -O4 -O5"
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flags_opt_all="$flags_opt_all -qnooptimize"
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flags_opt_all="$flags_opt_all -qoptimize=0"
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flags_opt_all="$flags_opt_all -qoptimize=1"
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flags_opt_all="$flags_opt_all -qoptimize=2"
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flags_opt_all="$flags_opt_all -qoptimize=3"
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flags_opt_all="$flags_opt_all -qoptimize=4"
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flags_opt_all="$flags_opt_all -qoptimize=5"
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flags_opt_yes="-O2"
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flags_opt_off="-qnooptimize"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_INTEL_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is Intel C.
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AC_DEFUN([CARES_CHECK_COMPILER_INTEL_C], [
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AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU_C])dnl
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AC_MSG_CHECKING([if compiler is Intel C])
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CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
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if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
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AC_MSG_RESULT([yes])
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CURL_CHECK_DEF([__unix__], [], [silent])
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if test "$curl_cv_have_def___unix__" = "yes"; then
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compiler_id="INTEL_UNIX_C"
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flags_dbg_all="-g -g0"
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flags_dbg_yes="-g"
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flags_dbg_off="-g0"
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flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
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flags_opt_yes="-O2"
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flags_opt_off="-O0"
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else
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compiler_id="INTEL_WINDOWS_C"
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flags_dbg_all="/ZI /Zi /zI /zi /ZD /Zd /zD /zd /Z7 /z7 /Oy /Oy-"
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flags_dbg_all="$flags_dbg_all /debug"
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flags_dbg_all="$flags_dbg_all /debug:none"
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flags_dbg_all="$flags_dbg_all /debug:minimal"
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flags_dbg_all="$flags_dbg_all /debug:partial"
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flags_dbg_all="$flags_dbg_all /debug:full"
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flags_dbg_all="$flags_dbg_all /debug:semantic_stepping"
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flags_dbg_all="$flags_dbg_all /debug:extended"
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flags_dbg_yes="/Zi /Oy-"
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flags_dbg_off="/debug:none /Oy-"
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flags_opt_all="/O /O0 /O1 /O2 /O3 /Od /Og /Og- /Oi /Oi-"
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flags_opt_yes="/O2"
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flags_opt_off="/Od"
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fi
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compiler_num="$curl_cv_def___INTEL_COMPILER"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_LCC
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dnl -------------------------------------------------
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dnl Verify if compiler being used is LCC.
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AC_DEFUN([CARES_CHECK_COMPILER_LCC], [
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AC_MSG_CHECKING([if compiler is LCC])
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CURL_CHECK_DEF([__LCC__], [], [silent])
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if test "$curl_cv_have_def___LCC__" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="LCC"
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flags_dbg_all="-g"
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flags_dbg_yes="-g"
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flags_dbg_off=""
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flags_opt_all=""
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flags_opt_yes=""
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flags_opt_off=""
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_SGI_MIPS_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is SGI MIPS C.
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AC_DEFUN([CARES_CHECK_COMPILER_SGI_MIPS_C], [
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AC_REQUIRE([CARES_CHECK_COMPILER_SGI_MIPSPRO_C])dnl
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AC_MSG_CHECKING([if compiler is SGI MIPS C])
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CURL_CHECK_DEF([__GNUC__], [], [silent])
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CURL_CHECK_DEF([__sgi], [], [silent])
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if test "$curl_cv_have_def___GNUC__" = "no" &&
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test "$curl_cv_have_def___sgi" = "yes" &&
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test "$compiler_id" = "unknown"; then
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AC_MSG_RESULT([yes])
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compiler_id="SGI_MIPS_C"
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flags_dbg_all="-g -g0 -g1 -g2 -g3"
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flags_dbg_yes="-g"
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flags_dbg_off="-g0"
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flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast"
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flags_opt_yes="-O2"
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flags_opt_off="-O0"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_SGI_MIPSPRO_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is SGI MIPSpro C.
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AC_DEFUN([CARES_CHECK_COMPILER_SGI_MIPSPRO_C], [
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AC_BEFORE([$0],[CARES_CHECK_COMPILER_SGI_MIPS_C])dnl
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AC_MSG_CHECKING([if compiler is SGI MIPSpro C])
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CURL_CHECK_DEF([__GNUC__], [], [silent])
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CURL_CHECK_DEF([_COMPILER_VERSION], [], [silent])
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CURL_CHECK_DEF([_SGI_COMPILER_VERSION], [], [silent])
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if test "$curl_cv_have_def___GNUC__" = "no" &&
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(test "$curl_cv_have_def__SGI_COMPILER_VERSION" = "yes" ||
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test "$curl_cv_have_def__COMPILER_VERSION" = "yes"); then
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AC_MSG_RESULT([yes])
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compiler_id="SGI_MIPSPRO_C"
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flags_dbg_all="-g -g0 -g1 -g2 -g3"
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flags_dbg_yes="-g"
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flags_dbg_off="-g0"
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flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast"
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flags_opt_yes="-O2"
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flags_opt_off="-O0"
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_SUNPRO_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is SunPro C.
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AC_DEFUN([CARES_CHECK_COMPILER_SUNPRO_C], [
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AC_MSG_CHECKING([if compiler is SunPro C])
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CURL_CHECK_DEF([__SUNPRO_C], [], [silent])
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if test "$curl_cv_have_def___SUNPRO_C" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="SUNPRO_C"
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flags_dbg_all="-g -s"
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flags_dbg_yes="-g"
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flags_dbg_off="-s"
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flags_opt_all="-O -xO -xO1 -xO2 -xO3 -xO4 -xO5"
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flags_opt_yes="-xO2"
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flags_opt_off=""
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_TINY_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is Tiny C.
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AC_DEFUN([CARES_CHECK_COMPILER_TINY_C], [
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AC_MSG_CHECKING([if compiler is Tiny C])
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CURL_CHECK_DEF([__TINYC__], [], [silent])
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if test "$curl_cv_have_def___TINYC__" = "yes"; then
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AC_MSG_RESULT([yes])
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compiler_id="TINY_C"
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flags_dbg_all="-g -b"
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flags_dbg_yes="-g"
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flags_dbg_off=""
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flags_opt_all=""
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flags_opt_yes=""
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flags_opt_off=""
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CHECK_COMPILER_WATCOM_C
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dnl -------------------------------------------------
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dnl Verify if compiler being used is Watcom C.
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AC_DEFUN([CARES_CHECK_COMPILER_WATCOM_C], [
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AC_MSG_CHECKING([if compiler is Watcom C])
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CURL_CHECK_DEF([__WATCOMC__], [], [silent])
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if test "$curl_cv_have_def___WATCOMC__" = "yes"; then
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AC_MSG_RESULT([yes])
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CURL_CHECK_DEF([__UNIX__], [], [silent])
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if test "$curl_cv_have_def___UNIX__" = "yes"; then
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compiler_id="WATCOM_UNIX_C"
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flags_dbg_all="-g1 -g1+ -g2 -g3"
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flags_dbg_yes="-g2"
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flags_dbg_off=""
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flags_opt_all="-O0 -O1 -O2 -O3"
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flags_opt_yes="-O2"
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flags_opt_off="-O0"
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else
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compiler_id="WATCOM_WINDOWS_C"
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flags_dbg_all=""
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flags_dbg_yes=""
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flags_dbg_off=""
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flags_opt_all=""
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flags_opt_yes=""
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flags_opt_off=""
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fi
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else
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AC_MSG_RESULT([no])
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fi
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])
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dnl CARES_CONVERT_INCLUDE_TO_ISYSTEM
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dnl -------------------------------------------------
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dnl Changes standard include paths present in CFLAGS
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dnl and CPPFLAGS into isystem include paths. This is
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dnl done to prevent GNUC from generating warnings on
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dnl headers from these locations, even though this is
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dnl not reliable on ancient GNUC versions.
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AC_DEFUN([CARES_CONVERT_INCLUDE_TO_ISYSTEM], [
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AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
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tmp_has_include="no"
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tmp_chg_FLAGS="$CFLAGS"
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for word1 in $tmp_chg_FLAGS; do
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case "$word1" in
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-I*)
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tmp_has_include="yes"
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;;
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esac
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done
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if test "$tmp_has_include" = "yes"; then
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tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'`
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tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'`
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CFLAGS="$tmp_chg_FLAGS"
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squeeze CFLAGS
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fi
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tmp_has_include="no"
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tmp_chg_FLAGS="$CPPFLAGS"
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for word1 in $tmp_chg_FLAGS; do
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case "$word1" in
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-I*)
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tmp_has_include="yes"
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;;
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esac
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done
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if test "$tmp_has_include" = "yes"; then
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tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'`
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tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'`
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CPPFLAGS="$tmp_chg_FLAGS"
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squeeze CPPFLAGS
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fi
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])
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|
|
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dnl CARES_COMPILER_WORKS_IFELSE ([ACTION-IF-WORKS], [ACTION-IF-NOT-WORKS])
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|
dnl -------------------------------------------------
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dnl Verify if the C compiler seems to work with the
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dnl settings that are 'active' at the time the test
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dnl is performed.
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AC_DEFUN([CARES_COMPILER_WORKS_IFELSE], [
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dnl compilation capability verification
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tmp_compiler_works="unknown"
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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]],[[
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int i = 1;
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return i;
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]])
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],[
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tmp_compiler_works="yes"
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],[
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tmp_compiler_works="no"
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echo " " >&6
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sed 's/^/cc-fail: /' conftest.err >&6
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echo " " >&6
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])
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dnl linking capability verification
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|
if test "$tmp_compiler_works" = "yes"; then
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AC_LINK_IFELSE([
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AC_LANG_PROGRAM([[
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]],[[
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int i = 1;
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return i;
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]])
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],[
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tmp_compiler_works="yes"
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|
],[
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tmp_compiler_works="no"
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|
echo " " >&6
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|
sed 's/^/link-fail: /' conftest.err >&6
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|
echo " " >&6
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|
])
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|
fi
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|
dnl only do runtime verification when not cross-compiling
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|
if test "x$cross_compiling" != "xyes" &&
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test "$tmp_compiler_works" = "yes"; then
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|
AC_RUN_IFELSE([
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|
AC_LANG_PROGRAM([[
|
|
# ifdef __STDC__
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|
# include <stdlib.h>
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|
# endif
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|
]],[[
|
|
int i = 0;
|
|
exit(i);
|
|
]])
|
|
],[
|
|
tmp_compiler_works="yes"
|
|
],[
|
|
tmp_compiler_works="no"
|
|
echo " " >&6
|
|
echo "run-fail: test program exited with status $ac_status" >&6
|
|
echo " " >&6
|
|
])
|
|
fi
|
|
dnl branch upon test result
|
|
if test "$tmp_compiler_works" = "yes"; then
|
|
ifelse($1,,:,[$1])
|
|
ifelse($2,,,[else
|
|
$2])
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_SET_COMPILER_BASIC_OPTS
|
|
dnl -------------------------------------------------
|
|
dnl Sets compiler specific options/flags which do not
|
|
dnl depend on configure's debug, optimize or warnings
|
|
dnl options.
|
|
|
|
AC_DEFUN([CARES_SET_COMPILER_BASIC_OPTS], [
|
|
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
#
|
|
if test "$compiler_id" != "unknown"; then
|
|
#
|
|
if test "$compiler_id" = "GNU_C"; then
|
|
CARES_CONVERT_INCLUDE_TO_ISYSTEM
|
|
fi
|
|
#
|
|
tmp_save_CPPFLAGS="$CPPFLAGS"
|
|
tmp_save_CFLAGS="$CFLAGS"
|
|
tmp_CPPFLAGS=""
|
|
tmp_CFLAGS=""
|
|
#
|
|
case "$compiler_id" in
|
|
#
|
|
DEC_C)
|
|
#
|
|
dnl Select strict ANSI C compiler mode
|
|
tmp_CFLAGS="$tmp_CFLAGS -std1"
|
|
dnl Turn off optimizer ANSI C aliasing rules
|
|
tmp_CFLAGS="$tmp_CFLAGS -noansi_alias"
|
|
dnl Generate warnings for missing function prototypes
|
|
tmp_CFLAGS="$tmp_CFLAGS -warnprotos"
|
|
dnl Change some warnings into fatal errors
|
|
tmp_CFLAGS="$tmp_CFLAGS -msg_fatal toofewargs,toomanyargs"
|
|
;;
|
|
#
|
|
GNU_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
HP_UX_C)
|
|
#
|
|
dnl Disallow run-time dereferencing of null pointers
|
|
tmp_CFLAGS="$tmp_CFLAGS -z"
|
|
dnl Disable some remarks
|
|
dnl #4227: padding struct with n bytes to align member
|
|
dnl #4255: padding size of struct with n bytes to alignment boundary
|
|
tmp_CFLAGS="$tmp_CFLAGS +W 4227,4255"
|
|
;;
|
|
#
|
|
IBM_C)
|
|
#
|
|
dnl Ensure that compiler optimizations are always thread-safe.
|
|
tmp_CFLAGS="$tmp_CFLAGS -qthreaded"
|
|
dnl Disable type based strict aliasing optimizations, using worst
|
|
dnl case aliasing assumptions when compiling. Type based aliasing
|
|
dnl would restrict the lvalues that could be safely used to access
|
|
dnl a data object.
|
|
tmp_CFLAGS="$tmp_CFLAGS -qnoansialias"
|
|
dnl Force compiler to stop after the compilation phase, without
|
|
dnl generating an object code file when compilation has errors.
|
|
tmp_CFLAGS="$tmp_CFLAGS -qhalt=e"
|
|
;;
|
|
#
|
|
INTEL_UNIX_C)
|
|
#
|
|
dnl On unix this compiler uses gcc's header files, so
|
|
dnl we select ANSI C89 dialect plus GNU extensions.
|
|
tmp_CPPFLAGS="$tmp_CPPFLAGS -std=gnu89"
|
|
dnl Change some warnings into errors
|
|
dnl #140: too many arguments in function call
|
|
dnl #147: declaration is incompatible with 'previous one'
|
|
dnl #165: too few arguments in function call
|
|
dnl #266: function declared implicitly
|
|
tmp_CPPFLAGS="$tmp_CPPFLAGS -we 140,147,165,266"
|
|
dnl Disable some remarks
|
|
dnl #279: controlling expression is constant
|
|
dnl #981: operands are evaluated in unspecified order
|
|
dnl #1469: "cc" clobber ignored
|
|
tmp_CPPFLAGS="$tmp_CPPFLAGS -wd 279,981,1469"
|
|
dnl Disable use of ANSI C aliasing rules in optimizations
|
|
tmp_CFLAGS="$tmp_CFLAGS -no-ansi-alias"
|
|
dnl Disable floating point optimizations
|
|
tmp_CFLAGS="$tmp_CFLAGS -fp-model precise"
|
|
;;
|
|
#
|
|
INTEL_WINDOWS_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
LCC)
|
|
#
|
|
dnl Disallow run-time dereferencing of null pointers
|
|
tmp_CFLAGS="$tmp_CFLAGS -n"
|
|
;;
|
|
#
|
|
SGI_MIPS_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
SGI_MIPSPRO_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
SUNPRO_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
TINY_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
WATCOM_UNIX_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
WATCOM_WINDOWS_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
esac
|
|
#
|
|
squeeze tmp_CPPFLAGS
|
|
squeeze tmp_CFLAGS
|
|
#
|
|
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
|
|
AC_MSG_CHECKING([if compiler accepts some basic options])
|
|
CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
|
|
squeeze CPPFLAGS
|
|
squeeze CFLAGS
|
|
CARES_COMPILER_WORKS_IFELSE([
|
|
AC_MSG_RESULT([yes])
|
|
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS])
|
|
dnl restore initial settings
|
|
CPPFLAGS="$tmp_save_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS"
|
|
])
|
|
fi
|
|
#
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_SET_COMPILER_DEBUG_OPTS
|
|
dnl -------------------------------------------------
|
|
dnl Sets compiler specific options/flags which depend
|
|
dnl on configure's debug option.
|
|
|
|
AC_DEFUN([CARES_SET_COMPILER_DEBUG_OPTS], [
|
|
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
|
|
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
#
|
|
if test "$compiler_id" != "unknown"; then
|
|
#
|
|
tmp_save_CFLAGS="$CFLAGS"
|
|
tmp_save_CPPFLAGS="$CPPFLAGS"
|
|
#
|
|
tmp_options=""
|
|
tmp_CFLAGS="$CFLAGS"
|
|
tmp_CPPFLAGS="$CPPFLAGS"
|
|
CARES_VAR_STRIP([tmp_CFLAGS],[$flags_dbg_all])
|
|
CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_dbg_all])
|
|
#
|
|
if test "$want_debug" = "yes"; then
|
|
AC_MSG_CHECKING([if compiler accepts debug enabling options])
|
|
tmp_options="$flags_dbg_yes"
|
|
fi
|
|
if test "$want_debug" = "no"; then
|
|
AC_MSG_CHECKING([if compiler accepts debug disabling options])
|
|
tmp_options="$flags_dbg_off"
|
|
fi
|
|
#
|
|
CPPFLAGS="$tmp_CPPFLAGS"
|
|
CFLAGS="$tmp_CFLAGS $tmp_options"
|
|
squeeze CPPFLAGS
|
|
squeeze CFLAGS
|
|
CARES_COMPILER_WORKS_IFELSE([
|
|
AC_MSG_RESULT([yes])
|
|
AC_MSG_NOTICE([compiler options added: $tmp_options])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
AC_MSG_WARN([compiler options rejected: $tmp_options])
|
|
dnl restore initial settings
|
|
CPPFLAGS="$tmp_save_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS"
|
|
])
|
|
#
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_SET_COMPILER_OPTIMIZE_OPTS
|
|
dnl -------------------------------------------------
|
|
dnl Sets compiler specific options/flags which depend
|
|
dnl on configure's optimize option.
|
|
|
|
AC_DEFUN([CARES_SET_COMPILER_OPTIMIZE_OPTS], [
|
|
AC_REQUIRE([CARES_CHECK_OPTION_OPTIMIZE])dnl
|
|
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
#
|
|
if test "$compiler_id" != "unknown"; then
|
|
#
|
|
tmp_save_CFLAGS="$CFLAGS"
|
|
tmp_save_CPPFLAGS="$CPPFLAGS"
|
|
#
|
|
tmp_options=""
|
|
tmp_CFLAGS="$CFLAGS"
|
|
tmp_CPPFLAGS="$CPPFLAGS"
|
|
honor_optimize_option="yes"
|
|
#
|
|
dnl If optimization request setting has not been explicitly specified,
|
|
dnl it has been derived from the debug setting and initially assumed.
|
|
dnl This initially assumed optimizer setting will finally be ignored
|
|
dnl if CFLAGS or CPPFLAGS already hold optimizer flags. This implies
|
|
dnl that an initially assumed optimizer setting might not be honored.
|
|
#
|
|
if test "$want_optimize" = "assume_no" ||
|
|
test "$want_optimize" = "assume_yes"; then
|
|
AC_MSG_CHECKING([if compiler optimizer assumed setting might be used])
|
|
CARES_VAR_MATCH_IFELSE([tmp_CFLAGS],[$flags_opt_all],[
|
|
honor_optimize_option="no"
|
|
])
|
|
CARES_VAR_MATCH_IFELSE([tmp_CPPFLAGS],[$flags_opt_all],[
|
|
honor_optimize_option="no"
|
|
])
|
|
AC_MSG_RESULT([$honor_optimize_option])
|
|
if test "$honor_optimize_option" = "yes"; then
|
|
if test "$want_optimize" = "assume_yes"; then
|
|
want_optimize="yes"
|
|
fi
|
|
if test "$want_optimize" = "assume_no"; then
|
|
want_optimize="no"
|
|
fi
|
|
fi
|
|
fi
|
|
#
|
|
if test "$honor_optimize_option" = "yes"; then
|
|
CARES_VAR_STRIP([tmp_CFLAGS],[$flags_opt_all])
|
|
CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_opt_all])
|
|
if test "$want_optimize" = "yes"; then
|
|
AC_MSG_CHECKING([if compiler accepts optimizer enabling options])
|
|
tmp_options="$flags_opt_yes"
|
|
fi
|
|
if test "$want_optimize" = "no"; then
|
|
AC_MSG_CHECKING([if compiler accepts optimizer disabling options])
|
|
tmp_options="$flags_opt_off"
|
|
fi
|
|
CPPFLAGS="$tmp_CPPFLAGS"
|
|
CFLAGS="$tmp_CFLAGS $tmp_options"
|
|
squeeze CPPFLAGS
|
|
squeeze CFLAGS
|
|
CARES_COMPILER_WORKS_IFELSE([
|
|
AC_MSG_RESULT([yes])
|
|
AC_MSG_NOTICE([compiler options added: $tmp_options])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
AC_MSG_WARN([compiler options rejected: $tmp_options])
|
|
dnl restore initial settings
|
|
CPPFLAGS="$tmp_save_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS"
|
|
])
|
|
fi
|
|
#
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_SET_COMPILER_WARNING_OPTS
|
|
dnl -------------------------------------------------
|
|
dnl Sets compiler options/flags which depend on
|
|
dnl configure's warnings given option.
|
|
|
|
AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
|
|
AC_REQUIRE([CARES_CHECK_OPTION_WARNINGS])dnl
|
|
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
#
|
|
if test "$compiler_id" != "unknown"; then
|
|
#
|
|
tmp_save_CPPFLAGS="$CPPFLAGS"
|
|
tmp_save_CFLAGS="$CFLAGS"
|
|
tmp_CPPFLAGS=""
|
|
tmp_CFLAGS=""
|
|
#
|
|
case "$compiler_id" in
|
|
#
|
|
DEC_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Select a higher warning level than default level2
|
|
tmp_CFLAGS="$tmp_CFLAGS -msg_enable level3"
|
|
fi
|
|
;;
|
|
#
|
|
GNU_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
#
|
|
dnl Do not enable -pedantic when cross-compiling with a gcc older
|
|
dnl than 3.0, to avoid warnings from third party system headers.
|
|
if test "x$cross_compiling" != "xyes" ||
|
|
test "$compiler_num" -ge "300"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -pedantic"
|
|
fi
|
|
#
|
|
dnl Set of options we believe *ALL* gcc versions support:
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wall -W"
|
|
#
|
|
dnl Only gcc 1.4 or later
|
|
if test "$compiler_num" -ge "104"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wpointer-arith -Wwrite-strings"
|
|
dnl If not cross-compiling with a gcc older than 3.0
|
|
if test "x$cross_compiling" != "xyes" ||
|
|
test "$compiler_num" -ge "300"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wunused -Wshadow"
|
|
fi
|
|
fi
|
|
#
|
|
dnl Only gcc 2.7 or later
|
|
if test "$compiler_num" -ge "207"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Winline -Wnested-externs"
|
|
dnl If not cross-compiling with a gcc older than 3.0
|
|
if test "x$cross_compiling" != "xyes" ||
|
|
test "$compiler_num" -ge "300"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-declarations"
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wmissing-prototypes"
|
|
fi
|
|
fi
|
|
#
|
|
dnl Only gcc 2.95 or later
|
|
if test "$compiler_num" -ge "295"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long"
|
|
fi
|
|
#
|
|
dnl Only gcc 2.96 or later
|
|
if test "$compiler_num" -ge "296"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wfloat-equal"
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-multichar -Wsign-compare"
|
|
dnl -Wundef used only if gcc is 2.96 or later since we get
|
|
dnl lots of "`_POSIX_C_SOURCE' is not defined" in system
|
|
dnl headers with gcc 2.95.4 on FreeBSD 4.9
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wundef"
|
|
fi
|
|
#
|
|
dnl Only gcc 2.97 or later
|
|
if test "$compiler_num" -ge "297"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral"
|
|
fi
|
|
#
|
|
dnl Only gcc 3.0 or later
|
|
if test "$compiler_num" -ge "300"; then
|
|
dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
|
|
dnl on i686-Linux as it gives us heaps with false positives.
|
|
dnl Also, on gcc 4.0.X it is totally unbearable and complains all
|
|
dnl over making it unusable for generic purposes. Let's not use it.
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
fi
|
|
#
|
|
dnl Only gcc 3.3 or later
|
|
if test "$compiler_num" -ge "303"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wendif-labels -Wstrict-prototypes"
|
|
fi
|
|
#
|
|
dnl Only gcc 3.4 or later
|
|
if test "$compiler_num" -ge "304"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wdeclaration-after-statement"
|
|
fi
|
|
#
|
|
fi
|
|
#
|
|
dnl Do not issue warnings for code in system include paths.
|
|
if test "$compiler_num" -ge "300"; then
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
|
|
else
|
|
dnl When cross-compiling with a gcc older than 3.0, disable
|
|
dnl some warnings triggered on third party system headers.
|
|
if test "x$cross_compiling" = "xyes"; then
|
|
if test "$compiler_num" -ge "104"; then
|
|
dnl gcc 1.4 or later
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-unused -Wno-shadow"
|
|
fi
|
|
if test "$compiler_num" -ge "207"; then
|
|
dnl gcc 2.7 or later
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-declarations"
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-prototypes"
|
|
fi
|
|
fi
|
|
fi
|
|
;;
|
|
#
|
|
HP_UX_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Issue all warnings
|
|
dnl tmp_CFLAGS="$tmp_CFLAGS +w1"
|
|
dnl Due to the HP-UX socklen_t issue it is insane to use the +w1
|
|
dnl warning level. Until the issue is somehow fixed we will just
|
|
dnl use the +w2 warning level.
|
|
tmp_CFLAGS="$tmp_CFLAGS +w2"
|
|
fi
|
|
;;
|
|
#
|
|
IBM_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
INTEL_UNIX_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
if test "$compiler_num" -gt "600"; then
|
|
dnl Show errors, warnings, and remarks
|
|
tmp_CPPFLAGS="$tmp_CPPFLAGS -Wall -w2"
|
|
dnl Perform extra compile-time code checking
|
|
tmp_CPPFLAGS="$tmp_CPPFLAGS -Wcheck"
|
|
fi
|
|
dnl Disable using EBP register in optimizations
|
|
tmp_CFLAGS="$tmp_CFLAGS -fno-omit-frame-pointer"
|
|
dnl Disable inline expansion of intrinsic functions
|
|
tmp_CFLAGS="$tmp_CFLAGS -fno-builtin"
|
|
dnl Disable inlining of functions
|
|
tmp_CFLAGS="$tmp_CFLAGS -fno-inline"
|
|
dnl Enable floating-point stack integrity checks
|
|
tmp_CFLAGS="$tmp_CFLAGS -fpstkchk"
|
|
dnl Enable run-time detection of buffer overruns.
|
|
tmp_CFLAGS="$tmp_CFLAGS -fstack-security-check"
|
|
fi
|
|
;;
|
|
#
|
|
INTEL_WINDOWS_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
LCC)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Highest warning level is double -A, next is single -A.
|
|
dnl Due to the big number of warnings these trigger on third
|
|
dnl party header files it is impratical for us to use any of
|
|
dnl them here. If you want them simply define it in CPPFLAGS.
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
fi
|
|
;;
|
|
#
|
|
SGI_MIPS_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Perform stricter semantic and lint-like checks
|
|
tmp_CFLAGS="$tmp_CFLAGS -fullwarn"
|
|
fi
|
|
;;
|
|
#
|
|
SGI_MIPSPRO_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Perform stricter semantic and lint-like checks
|
|
tmp_CFLAGS="$tmp_CFLAGS -fullwarn"
|
|
dnl Disable some remarks
|
|
dnl #1209: controlling expression is constant
|
|
tmp_CFLAGS="$tmp_CFLAGS -woff 1209"
|
|
fi
|
|
;;
|
|
#
|
|
SUNPRO_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Perform stricter semantic and lint-like checks
|
|
tmp_CFLAGS="$tmp_CFLAGS -v"
|
|
fi
|
|
;;
|
|
#
|
|
TINY_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Activate all warnings
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wall"
|
|
dnl Make string constants be of type const char *
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wwrite-strings"
|
|
dnl Warn use of unsupported GCC features ignored by TCC
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wunsupported"
|
|
fi
|
|
;;
|
|
#
|
|
WATCOM_UNIX_C)
|
|
#
|
|
if test "$want_warnings" = "yes"; then
|
|
dnl Issue all warnings
|
|
tmp_CFLAGS="$tmp_CFLAGS -Wall -Wextra"
|
|
fi
|
|
;;
|
|
#
|
|
WATCOM_WINDOWS_C)
|
|
#
|
|
dnl Placeholder
|
|
tmp_CFLAGS="$tmp_CFLAGS"
|
|
;;
|
|
#
|
|
esac
|
|
#
|
|
squeeze tmp_CPPFLAGS
|
|
squeeze tmp_CFLAGS
|
|
#
|
|
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
|
|
AC_MSG_CHECKING([if compiler accepts strict warning options])
|
|
CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
|
|
squeeze CPPFLAGS
|
|
squeeze CFLAGS
|
|
CARES_COMPILER_WORKS_IFELSE([
|
|
AC_MSG_RESULT([yes])
|
|
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS])
|
|
dnl restore initial settings
|
|
CPPFLAGS="$tmp_save_CPPFLAGS"
|
|
CFLAGS="$tmp_save_CFLAGS"
|
|
])
|
|
fi
|
|
#
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_SHFUNC_SQUEEZE
|
|
dnl -------------------------------------------------
|
|
dnl Declares a shell function squeeze() which removes
|
|
dnl redundant whitespace out of a shell variable.
|
|
|
|
AC_DEFUN([CARES_SHFUNC_SQUEEZE], [
|
|
squeeze() {
|
|
_sqz_result=""
|
|
eval _sqz_input=\[$][$]1
|
|
for _sqz_token in $_sqz_input; do
|
|
if test -z "$_sqz_result"; then
|
|
_sqz_result="$_sqz_token"
|
|
else
|
|
_sqz_result="$_sqz_result $_sqz_token"
|
|
fi
|
|
done
|
|
eval [$]1=\$_sqz_result
|
|
return 0
|
|
}
|
|
])
|
|
|
|
|
|
dnl CARES_PROCESS_DEBUG_BUILD_OPTS
|
|
dnl -------------------------------------------------
|
|
dnl Settings which depend on configure's debug given
|
|
dnl option, and further configure the build process.
|
|
dnl Don't use this macro for compiler dependant stuff.
|
|
|
|
AC_DEFUN([CARES_PROCESS_DEBUG_BUILD_OPTS], [
|
|
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
|
|
#
|
|
if test "$want_debug" = "yes"; then
|
|
|
|
dnl when doing the debug stuff, use static library only
|
|
AC_DISABLE_SHARED
|
|
|
|
debugbuild="yes"
|
|
|
|
dnl the entire --enable-debug is a hack that lives and runs on top of
|
|
dnl libcurl stuff so this BUILDING_LIBCURL is not THAT much uglier
|
|
AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl])
|
|
|
|
CPPFLAGS="$CPPFLAGS -DCURLDEBUG"
|
|
|
|
dnl CHECKME: Do we still need so specify this include path here?
|
|
CPPFLAGS="$CPPFLAGS -I$srcdir/../include"
|
|
|
|
squeeze CPPFLAGS
|
|
fi
|
|
#
|
|
])
|
|
|
|
|
|
dnl CARES_CHECK_PROG_CC
|
|
dnl -------------------------------------------------
|
|
dnl Check for compiler program, preventing CFLAGS and
|
|
dnl CPPFLAGS from being unexpectedly changed.
|
|
|
|
AC_DEFUN([CARES_CHECK_PROG_CC], [
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
ac_save_CPPFLAGS="$CPPFLAGS"
|
|
AC_PROG_CC
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
CPPFLAGS="$ac_save_CPPFLAGS"
|
|
])
|
|
|
|
|
|
dnl CARES_VAR_MATCH (VARNAME, VALUE)
|
|
dnl -------------------------------------------------
|
|
dnl Verifies if shell variable VARNAME contains VALUE.
|
|
dnl Contents of variable VARNAME and VALUE are handled
|
|
dnl as whitespace separated lists of words. If at least
|
|
dnl one word of VALUE is present in VARNAME the match
|
|
dnl is considered positive, otherwise false.
|
|
|
|
AC_DEFUN([CARES_VAR_MATCH], [
|
|
ac_var_match_word="no"
|
|
for word1 in $[$1]; do
|
|
for word2 in [$2]; do
|
|
if test "$word1" = "$word2"; then
|
|
ac_var_match_word="yes"
|
|
fi
|
|
done
|
|
done
|
|
])
|
|
|
|
|
|
dnl CARES_VAR_MATCH_IFELSE (VARNAME, VALUE,
|
|
dnl [ACTION-IF-MATCH], [ACTION-IF-NOT-MATCH])
|
|
dnl -------------------------------------------------
|
|
dnl This performs a CURL_VAR_MATCH check and executes
|
|
dnl first branch if the match is positive, otherwise
|
|
dnl the second branch is executed.
|
|
|
|
AC_DEFUN([CARES_VAR_MATCH_IFELSE], [
|
|
CARES_VAR_MATCH([$1],[$2])
|
|
if test "$ac_var_match_word" = "yes"; then
|
|
ifelse($3,,:,[$3])
|
|
ifelse($4,,,[else
|
|
$4])
|
|
fi
|
|
])
|
|
|
|
|
|
dnl CARES_VAR_STRIP (VARNAME, VALUE)
|
|
dnl -------------------------------------------------
|
|
dnl Contents of variable VARNAME and VALUE are handled
|
|
dnl as whitespace separated lists of words. Each word
|
|
dnl from VALUE is removed from VARNAME when present.
|
|
|
|
AC_DEFUN([CARES_VAR_STRIP], [
|
|
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
|
|
ac_var_stripped=""
|
|
for word1 in $[$1]; do
|
|
ac_var_strip_word="no"
|
|
for word2 in [$2]; do
|
|
if test "$word1" = "$word2"; then
|
|
ac_var_strip_word="yes"
|
|
fi
|
|
done
|
|
if test "$ac_var_strip_word" = "no"; then
|
|
ac_var_stripped="$ac_var_stripped $word1"
|
|
fi
|
|
done
|
|
dnl squeeze whitespace out of result
|
|
[$1]="$ac_var_stripped"
|
|
squeeze [$1]
|
|
])
|
|
|