From ba9717d445417df718c7e769ef31fbb4a625209b Mon Sep 17 00:00:00 2001 From: Sam James Date: Fri, 29 Dec 2023 00:38:40 +0000 Subject: [PATCH] configure.ac: fix bashism configure scripts need to be runnable with a POSIX-compliant /bin/sh. On many (but not all!) systems, /bin/sh is provided by Bash, so errors like this aren't spotted. Notably Debian defaults to /bin/sh provided by dash which doesn't tolerate such bashisms as '+='. This retains compatibility with bash. Just copy the expanded append like we do on the line above. Fixes warnings like: ``` ./configure: 13352: CFLAGS+= -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2: not found ``` --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 3e9da6bb..57874ab7 100644 --- a/configure.ac +++ b/configure.ac @@ -44,7 +44,7 @@ AC_ARG_ENABLE(optimization, AS_HELP_STRING([--disable-optimization], if (test "${enable_optimization}" != "no"); then CFLAGS="$CFLAGS -O2" - CFLAGS+=" -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2" + CFLAGS="$CFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2" fi AC_ARG_ENABLE(debug, AS_HELP_STRING([--enable-debug],