From 024af793fa6d6af644c225804d140cc13aa56307 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ospite@studenti.unina.it>
Date: Tue, 4 Dec 2012 11:46:12 +0100
Subject: [PATCH] Fix an error when compiling with both -O0 and
-Wp,-D_FORTIFY_SOURCE=2
Fix the following error happening with the gcc shipped on some Ubuntu
versions:
In file included from /usr/include/stdio.h:27:0,
from /home/pedro/lib/libam7xxx/src/am7xxx.c:19:
/usr/include/features.h:330:4: error: #warning _FORTIFY_SOURCE
requires compiling with optimization (-O) [-Werror=cpp]
cc1: all warnings being treated as errors
make[2]: *** [src/CMakeFiles/am7xxx.dir/am7xxx.c.o] Error 1
make[1]: *** [src/CMakeFiles/am7xxx.dir/all] Error 2
make: *** [all] Error 2
Reported-by: Petr Certik <petr@certik.cz>
---
CMakeLists.txt | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3e525cc..d99e401 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,6 @@ if (CMAKE_COMPILER_IS_GNUCC)
-Winit-self
-Winline
-Wpacked
- -Wp,-D_FORTIFY_SOURCE=2
-Wpointer-arith
-Wlarger-than-65500
-Wmissing-declarations
@@ -68,13 +67,13 @@ if (CMAKE_COMPILER_IS_GNUCC)
-Wwrite-strings
-fstack-protector
--param=ssp-buffer-size=4)
-endif()
-set(CMAKE_C_FLAGS_DEBUG "-O0 -ggdb -DDEBUG=1")
-set(CMAKE_C_FLAGS_RELEASE "-O2")
-set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g")
+ add_flags(DEBUG_FLAGS
+ -ggdb)
+
+ add_flags(RELEASE_FLAGS
+ -Wp,-D_FORTIFY_SOURCE=2)
-if (CMAKE_COMPILER_IS_GNUCC)
if (STRICT_COMPILATION_CHECKS)
add_flags(STRICT_FLAGS
-Werror
@@ -83,12 +82,13 @@ if (CMAKE_COMPILER_IS_GNUCC)
# NOTE: GCC >= 4.6 is needed for -Wunused-but-set-variable
-Wunused-but-set-variable)
- add_flags(CMAKE_C_FLAGS_DEBUG ${STRICT_FLAGS})
- add_flags(CMAKE_C_FLAGS_RELEASE ${STRICT_FLAGS})
- add_flags(CMAKE_C_FLAGS_RELWITHDEBINFO ${STRICT_FLAGS})
endif()
endif()
+set(CMAKE_C_FLAGS_DEBUG "-O0 ${DEBUG_FLAGS} ${STRICT_FLAGS}")
+set(CMAKE_C_FLAGS_RELEASE "-O2 ${RELEASE_FLAGS} ${STRICT_FLAGS}")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 ${RELEASE_FLAGS} ${DEBUG_FLAGS} ${STRICT_FLAGS}")
+
# Add library project
add_subdirectory(src)
add_subdirectory(examples)
--
2.1.4