diff options
| author | ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069> | 2020-04-23 16:50:45 +0000 |
|---|---|---|
| committer | ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069> | 2020-04-23 16:50:45 +0000 |
| commit | 2d7c5dccc470536bc6bd2186e41b0bf9b240ec5e (patch) | |
| tree | 46f4d3ba96edaeab33e4c3ce2d4759699dbec3a1 /CMakeLists.txt | |
| parent | b941dacb37e5b7e18cf1e99ec10f5117a135a05e (diff) | |
| download | pcre2-2d7c5dccc470536bc6bd2186e41b0bf9b240ec5e.tar.gz | |
Added tests for __attribute__((uninitialized)) to both the configure and
CMake build files. Used to disable initialization of the match stack frames
vector (clang has an automatic initialization feature).
git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1246 6239d852-aaf2-0410-a92c-79f79f948069
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 301a713..baa8890 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -87,6 +87,7 @@ # 2020-03-16 PH renamed dftables as pcre2_dftables (as elsewhere) # 2020-03-24 PH changed CMAKE_MODULE_PATH definition to add, not replace # 2020-04-08 Carlo added function check for secure_getenv, fixed strerror +# 2020-04-16 enh added check for __attribute__((uninitialized)) PROJECT(PCRE2 C) @@ -113,8 +114,9 @@ FIND_PACKAGE( Editline ) # Configuration checks -INCLUDE(CheckIncludeFile) +INCLUDE(CheckCSourceCompiles) INCLUDE(CheckFunctionExists) +INCLUDE(CheckIncludeFile) INCLUDE(CheckTypeSize) CHECK_INCLUDE_FILE(dirent.h HAVE_DIRENT_H) @@ -130,6 +132,14 @@ CHECK_FUNCTION_EXISTS(memmove HAVE_MEMMOVE) CHECK_FUNCTION_EXISTS(strerror HAVE_STRERROR) CHECK_FUNCTION_EXISTS(secure_getenv HAVE_SECURE_GETENV) +set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) +set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror") +CHECK_C_SOURCE_COMPILES( + "int main() { char buf[128] __attribute__((uninitialized)); (void)buf; return 0; }" + HAVE_ATTRIBUTE_UNINITIALIZED +) +set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS}) + # User-configurable options # # Note: CMakeSetup displays these in alphabetical order, regardless of |