ncurses 6.2 - patch 20201121

[ncurses.git] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index 4505447f1eece60c4c2f7b826051ff49df6d6a68..ad2eff615407026fc395929fe1d50a853b799117 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -29,7 +29,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey 1995-on
 dnl
-dnl $Id: aclocal.m4,v 1.939 2020/11/14 15:25:03 tom Exp $
+dnl $Id: aclocal.m4,v 1.940 2020/11/20 23:52:27 tom Exp $
 dnl Macros used in NCURSES auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -1480,7 +1480,7 @@ main(void)
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CLANG_COMPILER version: 4 updated: 2020/10/31 15:46:50
+dnl CF_CLANG_COMPILER version: 5 updated: 2020/11/20 18:52:27
 dnl -----------------
 dnl Check if the given compiler is really clang.  clang's C driver defines
 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
@@ -1516,12 +1516,15 @@ if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
                -Wno-error=implicit-function-declaration
        do
                AC_MSG_CHECKING(if option $cf_clang_opt works)
+               cf_save_CFLAGS="$CFLAGS"
+               CFLAGS="$CFLAGS $cf_clang_opt"
                AC_TRY_LINK([
                        #include <stdio.h>],[
                        printf("hello!\n");],[
                        cf_clang_optok=yes],[
                        cf_clang_optok=no])
                AC_MSG_RESULT($cf_clang_optok)
+               CFLAGS="$cf_save_CFLAGS"
                if test $cf_clang_optok = yes; then
                        CF_VERBOSE(adding option $cf_clang_opt)
                        CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)