diff options
| author | Patrick Steinhardt <ps@pks.im> | 2017-03-01 13:58:15 +0100 |
|---|---|---|
| committer | Patrick Steinhardt <ps@pks.im> | 2017-03-01 13:58:15 +0100 |
| commit | a02e8a388258d86c898d680e38897575f8de17ef (patch) | |
| tree | f308d73472f4950bcd8e481c5a1f262925753140 | |
| parent | a454641ee8b7b2ef1083b7f33d6135d87b50e9b0 (diff) | |
| download | libgit2-a02e8a388258d86c898d680e38897575f8de17ef.tar.gz | |
cmake: only enable supported compiler warning flags
We currently unconditionally enable the "-Wall" and "-Wextra" flags.
Some platforms rely on compilers which do not support these flags,
though. One of these platforms is Haiku, which does not support
"-Wextra" due to being stuck on GCC version 2.
Fix builds on such platforms by adding these flags only if supported by
the compiler.
| -rw-r--r-- | CMakeLists.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 4bfd1b499..317ad34f9 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -464,7 +464,10 @@ IF (MSVC) # Precompiled headers ELSE () - SET(CMAKE_C_FLAGS "-D_GNU_SOURCE -Wall -Wextra ${CMAKE_C_FLAGS}") + SET(CMAKE_C_FLAGS "-D_GNU_SOURCE ${CMAKE_C_FLAGS}") + + ADD_C_FLAG_IF_SUPPORTED(-Wall) + ADD_C_FLAG_IF_SUPPORTED(-Wextra) IF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)") SET(CMAKE_C_FLAGS "-std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS ${CMAKE_C_FLAGS}") |