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Add cmake check to verify that zlib supports the gzip format.

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This commit is contained in:
Felix Geyer 2010-09-24 13:32:05 +02:00
parent 7c83033899
commit a9ac4bbf41
1 changed files with 14 additions and 0 deletions
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14
CMakeLists.txt
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@ -53,6 +53,20 @@ find_package(Libgcrypt REQUIRED)
find_package(ZLIB REQUIRED)
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("
#include <zlib.h>
#if !defined(ZLIB_VERNUM) || (ZLIB_VERNUM < 0x1200)
#error zlib 1.2.x or higher is required to use the gzip format
#endif
int main() { return 0; }" ZLIB_SUPPORTS_GZIP)
if(NOT ZLIB_SUPPORTS_GZIP)
message(FATAL_ERROR "zlib 1.2.x or higher is required to use the gzip format")
endif(NOT ZLIB_SUPPORTS_GZIP)
add_subdirectory(src)
if( WITH_TESTS )
add_subdirectory(tests)