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-rw-r--r--source4/build/m4/check_cc.m443
1 files changed, 43 insertions, 0 deletions
diff --git a/source4/build/m4/check_cc.m4 b/source4/build/m4/check_cc.m4
index 4769d5087d..7f166ff641 100644
--- a/source4/build/m4/check_cc.m4
+++ b/source4/build/m4/check_cc.m4
@@ -198,6 +198,49 @@ if test -n "$DEVELOPER_CFLAGS"; then
CFLAGS="${OLD_CFLAGS}"
fi
+#
+# Config CPPFLAG settings for strange OS's that must be set
+# before other tests.
+#
+case "$host_os" in
+ # Try to work out if this is the native HPUX compiler that uses the -Ae flag.
+ *hpux*)
+ AC_PROG_CC_FLAG(Ae)
+ # mmap on HPUX is completely broken...
+ AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
+ if test $ac_cv_prog_cc_Ae = yes; then
+ CPPFLAGS="$CPPFLAGS -Ae"
+ fi
+ ;;
+
+ *aix*)
+ if test "${GCC}" != "yes"; then
+ ## for funky AIX compiler using strncpy()
+ CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
+ fi
+ ;;
+
+ #
+ # VOS may need to have POSIX support and System V compatibility enabled.
+ #
+ *vos*)
+ case "$CPPFLAGS" in
+ *-D_POSIX_C_SOURCE*);;
+ *)
+ CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200112L"
+ AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
+ ;;
+ esac
+ case "$CPPFLAGS" in
+ *-D_SYSV*|*-D_SVID_SOURCE*);;
+ *)
+ CPPFLAGS="$CPPFLAGS -D_SYSV"
+ AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
+ ;;
+ esac
+ ;;
+esac
+
# allow for --with-hostcc=gcc
AC_ARG_WITH(hostcc,[ --with-hostcc=compiler choose host compiler],
[HOSTCC=$withval],