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Add a check that the compiler actually works.

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The patch tests that the C and C++ compilers actually exist
and work. autoconf seems to default to 'g++' when C++ compiler is not
found, which causes the following error (when the compiler isn't
there):

checking for uuid_generate in -luuid... no
configure: error: cannot link with -luuid, install uuid-dev.

The config.log contains the real error message "g++ command not found"
but the error message shown to the user is misleading.

Signed-off-by: Mikko Koppanen <mkoppanen@php.net>
This commit is contained in:
Mikko Koppanen 2010-11-19 09:10:26 +01:00 committed by Martin Sustrik
parent 945c931daf
commit edf7c18d79
2 changed files with 23 additions and 1 deletions
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18
acinclude.m4
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@ -101,3 +101,21 @@ AC_DEFUN([AC_CHECK_DOC_BUILD], [{
AM_CONDITIONAL(BUILD_DOC, test "x$build_doc" = "xyes")
AM_CONDITIONAL(INSTALL_MAN, test "x$install_man" = "xyes")
}])
dnl ##############################################################################
dnl # AC_CHECK_LANG_COMPILER #
dnl # Check that compiler for the current language actually works #
dnl ##############################################################################
AC_DEFUN([AC_CHECK_LANG_COMPILER], [{
# Test that compiler for the current language actually works
AC_CACHE_CHECK([whether the _AC_LANG compiler works],
[ac_cv_[]_AC_LANG_ABBREV[]_compiler_works],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
[ac_cv_[]_AC_LANG_ABBREV[]_compiler_works=yes],
[ac_cv_[]_AC_LANG_ABBREV[]_compiler_works=no])
])
if test "x$ac_cv_[]_AC_LANG_ABBREV[]_compiler_works" != "xyes"; then
AC_MSG_ERROR([Unable to find a working _AC_LANG compiler])
fi
}])

6
configure.in
View File

@ -42,12 +42,16 @@ AC_CONFIG_LIBTOOL
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
# Check for ICC and Sun Studio compilers
# For that the compiler works and try to come up with the type
AC_LANG(C)
AC_CHECK_LANG_COMPILER
AC_CHECK_LANG_ICC
AC_CHECK_LANG_SUN_STUDIO
AC_LANG(C++)
AC_CHECK_LANG_COMPILER
AC_CHECK_LANG_ICC
AC_CHECK_LANG_SUN_STUDIO