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authorDamien Miller <djm@mindrot.org>2011-05-20 03:45:25 +0200
committerDamien Miller <djm@mindrot.org>2011-05-20 03:45:25 +0200
commitb176362d26dd746819b6287e4702bce90eefa2c1 (patch)
tree91fbe7dbeed5ed3751256e9844621d908e908017 /aclocal.m4
parent - (djm) [session.c] call setexeccon() before executing passwd for pw (diff)
downloadopenssh-b176362d26dd746819b6287e4702bce90eefa2c1.tar.xz
openssh-b176362d26dd746819b6287e4702bce90eefa2c1.zip
- (djm) [aclocal.m4 configure.ac] since gcc-4.x ignores all -Wno-options
options, we should corresponding -W-option when trying to determine whether it is accepted. Also includes a warning fix on the program fragment uses (bad main() return type). bz#1900 and bz#1901 reported by g.esp AT free.fr; ok dtucker@
Diffstat (limited to 'aclocal.m4')
-rw-r--r--aclocal.m420
1 files changed, 19 insertions, 1 deletions
diff --git a/aclocal.m4 b/aclocal.m4
index 83b241f7b..9bdea5ec2 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,8 +1,26 @@
-dnl $Id: aclocal.m4,v 1.7 2011/05/05 03:48:37 djm Exp $
+dnl $Id: aclocal.m4,v 1.8 2011/05/20 01:45:25 djm Exp $
dnl
dnl OpenSSH-specific autoconf macros
dnl
+dnl OSSH_CHECK_CFLAG_COMPILE(check_flag[, define_flag])
+dnl Check that $CC accepts a flag 'check_flag'. If it is supported append
+dnl 'define_flag' to $CFLAGS. If 'define_flag' is not specified, then append
+dnl 'check_flag'.
+AC_DEFUN([OSSH_CHECK_CFLAG_COMPILE], [{
+ AC_MSG_CHECKING([if $CC supports $1])
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $1"
+ _define_flag="$2"
+ test "x$_define_flag" = "x" && _define_flag="$1"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])],
+ [ AC_MSG_RESULT([yes])
+ CFLAGS="$saved_CFLAGS $_define_flag"],
+ [ AC_MSG_RESULT([no])
+ CFLAGS="$saved_CFLAGS" ]
+ )
+}])
+
dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol)
dnl Does AC_EGREP_HEADER on 'header' for the string 'field'