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configure: autotools compatibility fixes - step I

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Fix proper macro expansion order across autotools versions for
C compiler and preprocessor program checks.
This commit is contained in:
Yang Tse 2013-01-20 20:23:20 +01:00
parent e5ea45ec2e
commit 9d1effad05
5 changed files with 355 additions and 230 deletions
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212
configure.ac
View File

@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___ # | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____| # \___|\___/|_| \_\_____|
# #
# Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al. # Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
# #
# This software is licensed as described in the file COPYING, which # This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms # you should have received as part of this distribution. The terms
@ -125,6 +125,7 @@ fi
dnl figure out the libcurl version dnl figure out the libcurl version
CURLVERSION=`$SED -ne 's/^#define LIBCURL_VERSION "\(.*\)"/\1/p' ${srcdir}/include/curl/curlver.h` CURLVERSION=`$SED -ne 's/^#define LIBCURL_VERSION "\(.*\)"/\1/p' ${srcdir}/include/curl/curlver.h`
XC_CHECK_PROG_CC
AM_INIT_AUTOMAKE AM_INIT_AUTOMAKE
AC_MSG_CHECKING([curl version]) AC_MSG_CHECKING([curl version])
AC_MSG_RESULT($CURLVERSION) AC_MSG_RESULT($CURLVERSION)
@ -168,119 +169,6 @@ curl_verbose_msg="enabled (--disable-verbose)"
init_ssl_msg=${curl_ssl_msg} init_ssl_msg=${curl_ssl_msg}
dnl
dnl LIBS should only specify libraries
dnl
tst_bad_spec="no"
for word1 in $LIBS; do
case "$word1" in
-l* | --library=*)
:
;;
*)
tst_bad_spec="yes"
;;
esac
done
if test "$tst_bad_spec" = "yes"; then
AC_MSG_WARN([invalid LIBS: $LIBS])
AC_MSG_ERROR([LIBS may only be used to specify libraries (-lname).])
fi
dnl
dnl LDFLAGS should only specify linker flags
dnl
tst_bad_msg=""
tst_bad_spec="no"
for word1 in $LDFLAGS; do
case "$word1" in
-D*)
tst_bad_spec="yes"
tst_bad_msg="not macro definitions. Use CPPFLAGS for these."
;;
-U*)
tst_bad_spec="yes"
tst_bad_msg="not macro suppressions. Use CPPFLAGS for these."
;;
-I*)
tst_bad_spec="yes"
tst_bad_msg="not include directories. Use CPPFLAGS for these."
;;
-l* | --library=*)
tst_bad_spec="yes"
tst_bad_msg="not libraries. Use LIBS for these."
;;
esac
done
if test "$tst_bad_spec" = "yes"; then
AC_MSG_WARN([invalid LDFLAGS: $LDFLAGS])
AC_MSG_ERROR([LDFLAGS may only be used to specify linker flags, $tst_bad_msg])
fi
dnl
dnl CPPFLAGS should only specify C preprocessor flags
dnl
tst_bad_msg=""
tst_bad_spec="no"
for word1 in $CPPFLAGS; do
case "$word1" in
-rpath*)
tst_bad_spec="yes"
tst_bad_msg="not library runtime directories. Use LDFLAGS for these."
;;
-L* | --library-path=*)
tst_bad_spec="yes"
tst_bad_msg="not library directories. Use LDFLAGS for these."
;;
-l* | --library=*)
tst_bad_spec="yes"
tst_bad_msg="not libraries. Use LIBS for these."
;;
esac
done
if test "$tst_bad_spec" = "yes"; then
AC_MSG_WARN([invalid CPPFLAGS: $CPPFLAGS])
AC_MSG_ERROR([CPPFLAGS may only be used to specify C preprocessor flags, $tst_bad_msg])
fi
dnl
dnl CFLAGS should only specify C compiler flags
dnl
tst_bad_msg=""
tst_bad_spec="no"
for word1 in $CFLAGS; do
case "$word1" in
-D*)
tst_bad_spec="yes"
tst_bad_msg="not macro definitions. Use CPPFLAGS for these."
;;
-U*)
tst_bad_spec="yes"
tst_bad_msg="not macro suppressions. Use CPPFLAGS for these."
;;
-I*)
tst_bad_spec="yes"
tst_bad_msg="not include directories. Use CPPFLAGS for these."
;;
-rpath*)
tst_bad_spec="yes"
tst_bad_msg="not library runtime directories. Use LDFLAGS for these."
;;
-L* | --library-path=*)
tst_bad_spec="yes"
tst_bad_msg="not library directories. Use LDFLAGS for these."
;;
-l* | --library=*)
tst_bad_spec="yes"
tst_bad_msg="not libraries. Use LIBS for these."
;;
esac
done
if test "$tst_bad_spec" = "yes"; then
AC_MSG_WARN([invalid CFLAGS: $CFLAGS])
AC_MSG_ERROR([CFLAGS may only be used to specify C compiler flags, $tst_bad_msg])
fi
dnl dnl
dnl Save some initial values the user might have provided dnl Save some initial values the user might have provided
dnl dnl
@ -296,7 +184,6 @@ dnl Get system canonical name
AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS]) AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS])
dnl Checks for programs. dnl Checks for programs.
CURL_CHECK_PROG_CC
dnl Our curl_off_t internal and external configure settings dnl Our curl_off_t internal and external configure settings
CURL_CONFIGURE_CURL_OFF_T CURL_CONFIGURE_CURL_OFF_T
@ -3615,100 +3502,7 @@ squeeze CURL_NETWORK_AND_TIME_LIBS
squeeze SUPPORT_FEATURES squeeze SUPPORT_FEATURES
squeeze SUPPORT_PROTOCOLS squeeze SUPPORT_PROTOCOLS
dnl XC_CHECK_BUILD_FLAGS
dnl Some sanity checks for LIBS, LDFLAGS, CPPFLAGS and CFLAGS values that
dnl configure is going to feed into makefiles generated by automake. Due
dnl to automake placement and usage of these variables we have to follow
dnl its rules or we may get funny results later on at make-time.
dnl
dnl
dnl LIBS should only specify libraries
dnl
AC_MSG_NOTICE([using LIBS: $LIBS])
tst_bad_spec="no"
for word1 in $LIBS; do
case "$word1" in
-l* | --library=*)
:
;;
*)
tst_bad_spec="yes"
;;
esac
done
if test "$tst_bad_spec" = "yes"; then
AC_MSG_WARN([oops, LIBS should only specify libraries.])
fi
dnl
dnl LDFLAGS should only specify linker flags
dnl
AC_MSG_NOTICE([using LDFLAGS: $LDFLAGS])
tst_bad_msg="oops, LDFLAGS should only specify linker flags, not"
for word1 in $LDFLAGS; do
case "$word1" in
-D*)
AC_MSG_WARN([$tst_bad_msg macro definitions. Use CPPFLAGS for: $word1])
;;
-U*)
AC_MSG_WARN([$tst_bad_msg macro suppressions. Use CPPFLAGS for: $word1])
;;
-I*)
AC_MSG_WARN([$tst_bad_msg include directories. Use CPPFLAGS for: $word1])
;;
-l* | --library=*)
AC_MSG_WARN([$tst_bad_msg libraries. Use LIBS for: $word1])
;;
esac
done
dnl
dnl CPPFLAGS should only specify C preprocessor flags
dnl
AC_MSG_NOTICE([using CPPFLAGS: $CPPFLAGS])
tst_bad_msg="oops, CPPFLAGS should only specify C preprocessor flags, not"
for word1 in $CPPFLAGS; do
case "$word1" in
-rpath*)
AC_MSG_WARN([$tst_bad_msg library runtime directories. Use LDFLAGS for: $word1])
;;
-L* | --library-path=*)
AC_MSG_WARN([$tst_bad_msg library directories. Use LDFLAGS for: $word1])
;;
-l* | --library=*)
AC_MSG_WARN([$tst_bad_msg libraries. Use LIBS for: $word1])
;;
esac
done
dnl
dnl CFLAGS should only specify C compiler flags
dnl
AC_MSG_NOTICE([using CFLAGS: $CFLAGS])
tst_bad_msg="oops, CFLAGS should only specify C compiler flags, not"
for word1 in $CFLAGS; do
case "$word1" in
-D*)
AC_MSG_WARN([$tst_bad_msg macro definitions. Use CPPFLAGS for: $word1])
;;
-U*)
AC_MSG_WARN([$tst_bad_msg macro suppressions. Use CPPFLAGS for: $word1])
;;
-I*)
AC_MSG_WARN([$tst_bad_msg include directories. Use CPPFLAGS for: $word1])
;;
-rpath*)
AC_MSG_WARN([$tst_bad_msg library runtime directories. Use LDFLAGS for: $word1])
;;
-L* | --library-path=*)
AC_MSG_WARN([$tst_bad_msg library directories. Use LDFLAGS for: $word1])
;;
-l* | --library=*)
AC_MSG_WARN([$tst_bad_msg libraries. Use LIBS for: $word1])
;;
esac
done
if test "x$want_curldebug_assumed" = "xyes" && if test "x$want_curldebug_assumed" = "xyes" &&
test "x$want_curldebug" = "xyes" && test "x$USE_ARES" = "x1"; then test "x$want_curldebug" = "xyes" && test "x$USE_ARES" = "x1"; then

18
m4/curl-compilers.m4
View File

@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___ # | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____| # \___|\___/|_| \_\_____|
# #
# Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al. # Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
# #
# This software is licensed as described in the file COPYING, which # This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms # you should have received as part of this distribution. The terms
@ -21,7 +21,7 @@
#*************************************************************************** #***************************************************************************
# File version for 'aclocal' use. Keep it a single number. # File version for 'aclocal' use. Keep it a single number.
# serial 64 # serial 65
dnl CURL_CHECK_COMPILER dnl CURL_CHECK_COMPILER
@ -1264,20 +1264,6 @@ AC_DEFUN([CURL_CHECK_NO_UNDEFINED], [
]) ])
dnl CURL_CHECK_PROG_CC
dnl -------------------------------------------------
dnl Check for compiler program, preventing CFLAGS and
dnl CPPFLAGS from being unexpectedly changed.
AC_DEFUN([CURL_CHECK_PROG_CC], [
ac_save_CFLAGS="$CFLAGS"
ac_save_CPPFLAGS="$CPPFLAGS"
AC_PROG_CC
CFLAGS="$ac_save_CFLAGS"
CPPFLAGS="$ac_save_CPPFLAGS"
])
dnl CURL_CHECK_COMPILER_HALT_ON_ERROR dnl CURL_CHECK_COMPILER_HALT_ON_ERROR
dnl ------------------------------------------------- dnl -------------------------------------------------
dnl Verifies if the compiler actually halts after the dnl Verifies if the compiler actually halts after the

10
m4/curl-confopts.m4
View File

@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___ # | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____| # \___|\___/|_| \_\_____|
# #
# Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al. # Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
# #
# This software is licensed as described in the file COPYING, which # This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms # you should have received as part of this distribution. The terms
@ -21,7 +21,7 @@
#*************************************************************************** #***************************************************************************
# File version for 'aclocal' use. Keep it a single number. # File version for 'aclocal' use. Keep it a single number.
# serial 18 # serial 19
dnl CURL_CHECK_OPTION_THREADED_RESOLVER dnl CURL_CHECK_OPTION_THREADED_RESOLVER
dnl ------------------------------------------------- dnl -------------------------------------------------
@ -145,7 +145,7 @@ dnl variable want_debug value as appropriate.
AC_DEFUN([CURL_CHECK_OPTION_DEBUG], [ AC_DEFUN([CURL_CHECK_OPTION_DEBUG], [
AC_BEFORE([$0],[CURL_CHECK_OPTION_WARNINGS])dnl AC_BEFORE([$0],[CURL_CHECK_OPTION_WARNINGS])dnl
AC_BEFORE([$0],[CURL_CHECK_OPTION_CURLDEBUG])dnl AC_BEFORE([$0],[CURL_CHECK_OPTION_CURLDEBUG])dnl
AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable debug build options]) AC_MSG_CHECKING([whether to enable debug build options])
OPT_DEBUG_BUILD="default" OPT_DEBUG_BUILD="default"
AC_ARG_ENABLE(debug, AC_ARG_ENABLE(debug,
@ -177,7 +177,7 @@ dnl shell variable want_optimize value as appropriate.
AC_DEFUN([CURL_CHECK_OPTION_OPTIMIZE], [ AC_DEFUN([CURL_CHECK_OPTION_OPTIMIZE], [
AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl
AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable compiler optimizer]) AC_MSG_CHECKING([whether to enable compiler optimizer])
OPT_COMPILER_OPTIMIZE="default" OPT_COMPILER_OPTIMIZE="default"
AC_ARG_ENABLE(optimize, AC_ARG_ENABLE(optimize,
@ -326,7 +326,7 @@ dnl shell variable want_warnings as appropriate.
AC_DEFUN([CURL_CHECK_OPTION_WARNINGS], [ AC_DEFUN([CURL_CHECK_OPTION_WARNINGS], [
AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl
AC_BEFORE([$0],[CURL_CHECK_OPTION_WERROR])dnl AC_BEFORE([$0],[CURL_CHECK_OPTION_WERROR])dnl
AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable strict compiler warnings]) AC_MSG_CHECKING([whether to enable strict compiler warnings])
OPT_COMPILER_WARNINGS="default" OPT_COMPILER_WARNINGS="default"
AC_ARG_ENABLE(warnings, AC_ARG_ENABLE(warnings,

102
m4/xc-cc-check.m4 Normal file
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@ -0,0 +1,102 @@
#---------------------------------------------------------------------------
#
# xc-cc-check.m4
#
# Copyright (c) 2013 Daniel Stenberg <daniel@haxx.se>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
#---------------------------------------------------------------------------
# serial 1
dnl _XC_PROG_CC_PREAMBLE
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_PROG_CC_PREAMBLE], [
xc_prog_cc_prev_IFS=$IFS
xc_prog_cc_prev_LIBS=$LIBS
xc_prog_cc_prev_CFLAGS=$CFLAGS
xc_prog_cc_prev_LDFLAGS=$LDFLAGS
xc_prog_cc_prev_CPPFLAGS=$CPPFLAGS
])
dnl _XC_PROG_CC_POSTLUDE
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_PROG_CC_POSTLUDE], [
IFS=$xc_prog_cc_prev_IFS
LIBS=$xc_prog_cc_prev_LIBS
CFLAGS=$xc_prog_cc_prev_CFLAGS
LDFLAGS=$xc_prog_cc_prev_LDFLAGS
CPPFLAGS=$xc_prog_cc_prev_CPPFLAGS
export CC
export CPP
export LIBS
export CFLAGS
export LDFLAGS
export CPPFLAGS
AC_SUBST([CC])dnl
AC_SUBST([CPP])dnl
AC_SUBST([LIBS])dnl
AC_SUBST([CFLAGS])dnl
AC_SUBST([LDFLAGS])dnl
AC_SUBST([CPPFLAGS])dnl
])
dnl _XC_PROG_CC
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_PROG_CC], [
AC_REQUIRE([_XC_PROG_CC_PREAMBLE])dnl
AC_REQUIRE([XC_CHECK_USER_FLAGS])dnl
AC_REQUIRE([AC_PROG_INSTALL])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AM_PROG_CC_C_O])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
AC_REQUIRE([_XC_PROG_CC_POSTLUDE])dnl
])
dnl XC_CHECK_PROG_CC
dnl -------------------------------------------------
dnl Public macro.
dnl
dnl Checks for C compiler and C preprocessor programs,
dnl while doing some previous sanity validation on user
dnl provided LIBS, LDFLAGS, CPPFLAGS and CFLAGS values
dnl that must succeed in order to continue execution.
dnl
dnl This sets variables CC and CPP, while preventing
dnl LIBS, LDFLAGS, CFLAGS, CPPFLAGS and IFS from being
dnl unexpectedly changed by underlying macros.
AC_DEFUN([XC_CHECK_PROG_CC], [
AC_PREREQ([2.50])dnl
AC_BEFORE([$0],[_XC_PROG_CC_PREAMBLE])dnl
AC_BEFORE([$0],[AC_PROG_INSTALL])dnl
AC_BEFORE([$0],[AC_PROG_CC])dnl
AC_BEFORE([$0],[AM_PROG_CC_C_O])dnl
AC_BEFORE([$0],[AC_PROG_CPP])dnl
AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl
AC_BEFORE([$0],[_XC_PROG_CC_POSTLUDE])dnl
AC_REQUIRE([_XC_PROG_CC])dnl
])

243
m4/xc-val-flgs.m4 Normal file
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@ -0,0 +1,243 @@
#---------------------------------------------------------------------------
#
# xc-val-flgs.m4
#
# Copyright (c) 2013 Daniel Stenberg <daniel@haxx.se>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
#---------------------------------------------------------------------------
# serial 1
dnl _XC_CHECK_VAR_LIBS
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_CHECK_VAR_LIBS], [
xc_bad_var_libs=no
for xc_word in $LIBS; do
case "$xc_word" in
-l* | --library=*)
:
;;
*)
xc_bad_var_libs=yes
;;
esac
done
if test $xc_bad_var_libs = yes; then
AC_MSG_NOTICE([using LIBS: $LIBS])
AC_MSG_NOTICE([LIBS error: LIBS may only be used to specify libraries (-lname).])
fi
])
dnl _XC_CHECK_VAR_LDFLAGS
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_CHECK_VAR_LDFLAGS], [
xc_bad_var_ldflags=no
for xc_word in $LDFLAGS; do
case "$xc_word" in
-D*)
xc_bad_var_ldflags=yes
;;
-U*)
xc_bad_var_ldflags=yes
;;
-I*)
xc_bad_var_ldflags=yes
;;
-l* | --library=*)
xc_bad_var_ldflags=yes
;;
esac
done
if test $xc_bad_var_ldflags = yes; then
AC_MSG_NOTICE([using LDFLAGS: $LDFLAGS])
xc_bad_var_msg="LDFLAGS error: LDFLAGS may only be used to specify linker flags, not"
for xc_word in $LDFLAGS; do
case "$xc_word" in
-D*)
AC_MSG_NOTICE([$xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word])
;;
-U*)
AC_MSG_NOTICE([$xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word])
;;
-I*)
AC_MSG_NOTICE([$xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word])
;;
-l* | --library=*)
AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word])
;;
esac
done
fi
])
dnl _XC_CHECK_VAR_CPPFLAGS
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_CHECK_VAR_CPPFLAGS], [
xc_bad_var_cppflags=no
for xc_word in $CPPFLAGS; do
case "$xc_word" in
-rpath*)
xc_bad_var_cppflags=yes
;;
-L* | --library-path=*)
xc_bad_var_cppflags=yes
;;
-l* | --library=*)
xc_bad_var_cppflags=yes
;;
esac
done
if test $xc_bad_var_cppflags = yes; then
AC_MSG_NOTICE([using CPPFLAGS: $CPPFLAGS])
xc_bad_var_msg="CPPFLAGS error: CPPFLAGS may only be used to specify C preprocessor flags, not"
for xc_word in $CPPFLAGS; do
case "$xc_word" in
-rpath*)
AC_MSG_NOTICE([$xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word])
;;
-L* | --library-path=*)
AC_MSG_NOTICE([$xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word])
;;
-l* | --library=*)
AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word])
;;
esac
done
fi
])
dnl _XC_CHECK_VAR_CFLAGS
dnl -------------------------------------------------
dnl Private macro.
AC_DEFUN([_XC_CHECK_VAR_CFLAGS], [
xc_bad_var_cflags=no
for xc_word in $CFLAGS; do
case "$xc_word" in
-D*)
xc_bad_var_cflags=yes
;;
-U*)
xc_bad_var_cflags=yes
;;
-I*)
xc_bad_var_cflags=yes
;;
-rpath*)
xc_bad_var_cflags=yes
;;
-L* | --library-path=*)
xc_bad_var_cflags=yes
;;
-l* | --library=*)
xc_bad_var_cflags=yes
;;
esac
done
if test $xc_bad_var_cflags = yes; then
AC_MSG_NOTICE([using CFLAGS: $CFLAGS])
xc_bad_var_msg="CFLAGS error: CFLAGS may only be used to specify C compiler flags, not"
for xc_word in $CFLAGS; do
case "$xc_word" in
-D*)
AC_MSG_NOTICE([$xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word])
;;
-U*)
AC_MSG_NOTICE([$xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word])
;;
-I*)
AC_MSG_NOTICE([$xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word])
;;
-rpath*)
AC_MSG_NOTICE([$xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word])
;;
-L* | --library-path=*)
AC_MSG_NOTICE([$xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word])
;;
-l* | --library=*)
AC_MSG_NOTICE([$xc_bad_var_msg libraries. Use LIBS for: $xc_word])
;;
esac
done
fi
])
dnl XC_CHECK_USER_FLAGS
dnl -------------------------------------------------
dnl Public macro.
dnl
dnl Performs some sanity checks for LIBS, LDFLAGS,
dnl CPPFLAGS and CFLAGS values that the user might
dnl have set. When checks fails, user is noticed
dnl about errors detected in all of them and script
dnl execution is halted.
dnl
dnl Intended to be used early in configure script.
AC_DEFUN([XC_CHECK_USER_FLAGS], [
AC_PREREQ([2.50])dnl
AC_BEFORE([$0],[XC_CHECK_PROG_CC])dnl
dnl check order below matters
_XC_CHECK_VAR_LIBS
_XC_CHECK_VAR_LDFLAGS
_XC_CHECK_VAR_CPPFLAGS
_XC_CHECK_VAR_CFLAGS
if test $xc_bad_var_libs = yes ||
test $xc_bad_var_cflags = yes ||
test $xc_bad_var_ldflags = yes ||
test $xc_bad_var_cppflags = yes; then
AC_MSG_ERROR([Can not continue. Fix errors mentioned immediately above this line.])
fi
])
dnl XC_CHECK_BUILD_FLAGS
dnl -------------------------------------------------
dnl Public macro.
dnl
dnl Performs some sanity checks for LIBS, LDFLAGS,
dnl CPPFLAGS and CFLAGS values that the configure
dnl script might have set. When checks fails, user
dnl is noticed about errors detected in all of them
dnl but script continues execution.
dnl
dnl Intended to be used very late in configure script.
AC_DEFUN([XC_CHECK_BUILD_FLAGS], [
AC_PREREQ([2.50])dnl
dnl check order below matters
_XC_CHECK_VAR_LIBS
_XC_CHECK_VAR_LDFLAGS
_XC_CHECK_VAR_CPPFLAGS
_XC_CHECK_VAR_CFLAGS
if test $xc_bad_var_libs = yes ||
test $xc_bad_var_cflags = yes ||
test $xc_bad_var_ldflags = yes ||
test $xc_bad_var_cppflags = yes; then
AC_MSG_WARN([Continuing even with errors mentioned immediately above this line.])
fi
])