From: Darren Tucker <dtucker@dtucker.net>
Date: Wed, 22 Nov 2023 10:18:55 +0000 (+1100)
Subject: Run compiler test program when compiling natively.
X-Git-Tag: V_9_6_P1~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cea007d691cfedfa07a5b8599f97ce0511f53fc9;p=thirdparty%2Fopenssh-portable.git

Run compiler test program when compiling natively.

ok djm@
---

diff --git a/m4/openssh.m4 b/m4/openssh.m4
index 386a616f2..80254a302 100644
--- a/m4/openssh.m4
+++ b/m4/openssh.m4
@@ -53,8 +53,15 @@ then
 		AC_MSG_RESULT([no])
 		CFLAGS="$saved_CFLAGS"
 else
-		AC_MSG_RESULT([yes])
-		 CFLAGS="$saved_CFLAGS $_define_flag"
+		dnl If we are compiling natively, try running the program.
+		AC_RUN_IFELSE([OSSH_COMPILER_FLAG_TEST_PROGRAM],
+			[ AC_MSG_RESULT([yes])
+			  CFLAGS="$saved_CFLAGS $_define_flag" ],
+			[ AC_MSG_RESULT([no, fails at run time])
+			  CFLAGS="$saved_CFLAGS" ],
+			[ AC_MSG_RESULT([yes])
+			  CFLAGS="$saved_CFLAGS $_define_flag" ],
+		)
 fi],
 		[ AC_MSG_RESULT([no])
 		  CFLAGS="$saved_CFLAGS" ]
@@ -78,8 +85,15 @@ then
 		AC_MSG_RESULT([no])
 		CFLAGS="$saved_CFLAGS"
 else
-		AC_MSG_RESULT([yes])
-		 CFLAGS="$saved_CFLAGS $_define_flag"
+		dnl If we are compiling natively, try running the program.
+		AC_RUN_IFELSE([OSSH_COMPILER_FLAG_TEST_PROGRAM],
+			[ AC_MSG_RESULT([yes])
+			  CFLAGS="$saved_CFLAGS $_define_flag" ],
+			[ AC_MSG_RESULT([no, fails at run time])
+			  CFLAGS="$saved_CFLAGS" ],
+			[ AC_MSG_RESULT([yes])
+			  CFLAGS="$saved_CFLAGS $_define_flag" ],
+		)
 fi],
 		[ AC_MSG_RESULT([no])
 		  CFLAGS="$saved_CFLAGS" ]
@@ -103,8 +117,15 @@ then
 		  AC_MSG_RESULT([no])
 		  LDFLAGS="$saved_LDFLAGS"
 else
-		  AC_MSG_RESULT([yes])
-		  LDFLAGS="$saved_LDFLAGS $_define_flag"
+		  dnl If we are compiling natively, try running the program.
+		  AC_RUN_IFELSE([OSSH_COMPILER_FLAG_TEST_PROGRAM],
+			[ AC_MSG_RESULT([yes])
+			  LDFLAGS="$saved_LDFLAGS $_define_flag" ],
+			[ AC_MSG_RESULT([no, fails at run time])
+			  LDFLAGS="$saved_LDFLAGS" ],
+			[ AC_MSG_RESULT([yes])
+			  LDFLAGS="$saved_LDFLAGS $_define_flag" ]
+		  )
 fi		],
 		[ AC_MSG_RESULT([no])
 		  LDFLAGS="$saved_LDFLAGS" ]