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Fix compilation with MinGW.

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Right now, compilation out of the box with latest MinGW is broken
due to bugs in header files of mingwrt 4.0.3 in strict ANSI mode,
cf.

  https://sourceforge.net/p/mingw/bugs/2024/
  https://sourceforge.net/p/mingw/bugs/2046/

* builds/unix/configure.raw: Don't set `-ansi' flag for MinGW.
This commit is contained in:
Werner Lemberg 2014-02-04 16:14:09 +01:00
parent a8772918a3
commit d87f9a65a8
2 changed files with 53 additions and 21 deletions
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13
ChangeLog
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@ -1,3 +1,16 @@
2014-02-04 Werner Lemberg <wl@gnu.org>
Fix compilation with MinGW.
Right now, compilation out of the box with latest MinGW is broken
due to bugs in header files of mingwrt 4.0.3 in strict ANSI mode,
cf.
https://sourceforge.net/p/mingw/bugs/2024/
https://sourceforge.net/p/mingw/bugs/2046/
* builds/unix/configure.raw: Don't set `-ansi' flag for MinGW.
2014-02-04 Werner Lemberg <wl@gnu.org>
[autofit] Minor fix.

61
builds/unix/configure.raw
View File

@ -206,30 +206,49 @@ AC_CHECK_FUNCS([memcpy memmove])
# get compiler flags right
# we try to make the compiler work for C89-strict source.
# even if C compiler is GCC and C89 flags are available,
# some system headers (e.g. Android Bionic libc) is broken
# in C89 mode. we have to check the compilation finishes
# successfully.
#
# We try to make the compiler work for C89-strict source. Even if the
# C compiler is gcc and C89 flags are available, some system headers
# (e.g., Android Bionic libc) are broken in C89 mode. We have to check
# whether the compilation finishes successfully.
#
# Due to bugs in mingwrt 4.0.3 we don't use `-ansi' for MinGW.
#
if test "x$GCC" = xyes; then
XX_CFLAGS="-Wall"
XX_ANSIFLAGS=""
for a in -pedantic -ansi
do
AC_MSG_CHECKING([gcc compiler flag ${a} to assure ANSI C works correctly])
orig_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} ${XX_ANSIFLAGS} ${a}"
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([#include <stdio.h>],[{puts("");return 0;}])
],[
AC_MSG_RESULT([ok, add it to XX_ANSIFLAGS])
XX_ANSIFLAGS="${XX_ANSIFLAGS} ${a}"
],[
AC_MSG_RESULT([no])
])
CFLAGS="${orig_CFLAGS}"
done
case "$host" in
*-*-mingw*)
XX_ANSIFLAGS="-pedantic"
;;
*)
XX_ANSIFLAGS=""
for a in -pedantic -ansi
do
AC_MSG_CHECKING([gcc compiler flag ${a} to assure ANSI C works correctly])
orig_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} ${XX_ANSIFLAGS} ${a}"
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([
#include <stdio.h>
],
[
{
puts( "" );
return 0;
}
])],
[AC_MSG_RESULT([ok, add it to XX_ANSIFLAGS])
XX_ANSIFLAGS="${XX_ANSIFLAGS} ${a}"
],
[AC_MSG_RESULT([no])])
CFLAGS="${orig_CFLAGS}"
done
;;
esac
else
case "$host" in
*-dec-osf*)