The behavior of "echo -e" is not part of the POSIY standard and different shells handle it differently. OTOH, /bin/echo isn't necessarily available, either. Use printf instead, which is part of POSIX.
Signed-off-by: Martin Wilck <[email protected]> --- create-config.mk | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/create-config.mk b/create-config.mk index 4d318b9..0abbb3a 100644 --- a/create-config.mk +++ b/create-config.mk @@ -147,11 +147,11 @@ TEST_CC_OPTION = $(shell \ # On some distros (e.g. Debian Buster) it will be falsely reported as supported # but it doesn't seem to make a difference wrt the compilation result. FORTIFY_OPT := $(shell \ - if /bin/echo -e '$(__HASH__)include <string.h>\nint main(void) { return 0; }' | \ + if printf '$(__HASH__)include <string.h>\nint main(void) { return 0; }\n' | \ $(CC) -o /dev/null $(OPTFLAGS) -c -Werror -D_FORTIFY_SOURCE=3 -xc - 2>/dev/null; \ then \ echo "-D_FORTIFY_SOURCE=3"; \ - elif /bin/echo -e '$(__HASH__)include <string.h>\nint main(void) { return 0; }' | \ + elif printf '$(__HASH__)include <string.h>\nint main(void) { return 0; }\n' | \ $(CC) -o /dev/null $(OPTFLAGS) -c -Werror -D_FORTIFY_SOURCE=2 -xc - 2>/dev/null; \ then \ echo "-D_FORTIFY_SOURCE=2"; \ -- 2.45.2
