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-rw-r--r--cmake/Modules/FindGmp.cmake6
1 files changed, 5 insertions, 1 deletions
diff --git a/cmake/Modules/FindGmp.cmake b/cmake/Modules/FindGmp.cmake
index c59f2219..d0ccd3cd 100644
--- a/cmake/Modules/FindGmp.cmake
+++ b/cmake/Modules/FindGmp.cmake
@@ -2,7 +2,11 @@ find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
pkg_check_modules(GMP gmp)
-else()
+endif()
+
+# Only very recent versions of gmp has pkg-config support, so we have to
+# fall back on a more classical search
+if(NOT GMP_FOUND)
find_path(GMP_INCLUDE_DIRS NAMES gmp.h PATH_SUFFIXES)
find_library(GMP_LIBRARIES NAMES gmp)
find_package_handle_standard_args(GMP DEFAULT_MSG GMP_LIBRARIES GMP_INCLUDE_DIRS)