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configure: Do a real check for -idirafter anyhow.

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(The CMake project cheats around this by asking "are we GCC or Clang?" and I'm
inclined to leave it like that for now.)
This commit is contained in:
Ryan C. Gordon 2020-05-19 12:08:05 -04:00
parent 2f565b4469
commit 475afe2162
2 changed files with 47 additions and 2 deletions
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32
configure vendored
View File

@ -16000,7 +16000,37 @@ case "$host" in
;;
esac
INCLUDE="-I$srcdir/include -I$srcdir/src/video/khronos"
save_CFLAGS="$CFLAGS"
have_idirafter="no"
idirafter="-I"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -idirafter option" >&5
$as_echo_n "checking for -idirafter option... " >&6; }
CFLAGS="$save_CFLAGS -idirafter src"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
have_idirafter="yes"
idirafter="-idirafter"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_idirafter" >&5
$as_echo "$have_idirafter" >&6; }
CFLAGS="$save_CFLAGS"
INCLUDE="-I$srcdir/include $idirafter $srcdir/src/video/khronos"
if test x$srcdir != x.; then
INCLUDE="-Iinclude $INCLUDE"
elif test -d .hg; then

17
configure.ac
View File

@ -69,8 +69,23 @@ case "$host" in
;;
esac
dnl see if -idirafter is available.
save_CFLAGS="$CFLAGS"
have_idirafter="no"
idirafter="-I"
AC_MSG_CHECKING(for -idirafter option)
CFLAGS="$save_CFLAGS -idirafter src"
AC_TRY_COMPILE([
],[
],[
have_idirafter="yes"
idirafter="-idirafter"
])
AC_MSG_RESULT($have_idirafter)
CFLAGS="$save_CFLAGS"
dnl Set up the compiler and linker flags
INCLUDE="-I$srcdir/include -I$srcdir/src/video/khronos"
INCLUDE="-I$srcdir/include $idirafter $srcdir/src/video/khronos"
if test x$srcdir != x.; then
INCLUDE="-Iinclude $INCLUDE"
elif test -d .hg; then