From 93a533906e855a19ab5e64849df91e6fe9940712 Mon Sep 17 00:00:00 2001
From: Mike Taves <mwtoews@gmail.com>
Date: Mon, 24 Jan 2022 00:45:14 +1300
Subject: CI: transition tests from autotools to cmake (#3023)

---
 cmake/ProjConfig.cmake | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

(limited to 'cmake')

diff --git a/cmake/ProjConfig.cmake b/cmake/ProjConfig.cmake
index a53c3af1..fa9fd6a4 100644
--- a/cmake/ProjConfig.cmake
+++ b/cmake/ProjConfig.cmake
@@ -10,12 +10,25 @@
 include(CheckLibraryExists)
 include(CheckFunctionExists)
 
+# if C flags have -Werror, temporarily remove these while running some checks
+string(FIND "${CMAKE_C_FLAGS}" "-Werror" FIND_WERROR)
+if(FIND_WERROR GREATER_EQUAL 0)
+  string(REPLACE "-Werror" "" _tmp_CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
+  set(_prev_CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+  set(CMAKE_C_FLAGS "${_tmp_CMAKE_C_FLAGS}")
+endif()
+
 # check needed include file
 check_function_exists(localeconv HAVE_LOCALECONV)
 check_function_exists(strerror HAVE_STRERROR)
 if(NOT WIN32)
-    check_library_exists(dl dladdr "" HAVE_LIBDL)
-    check_library_exists(m exp "" HAVE_LIBM)
+  check_library_exists(dl dladdr "" HAVE_LIBDL)
+  check_library_exists(m exp "" HAVE_LIBM)
+endif()
+
+# restore CMAKE_C_FLAGS as before
+if(FIND_WERROR GREATER_EQUAL 0)
+  set(CMAKE_C_FLAGS "${_prev_CMAKE_C_FLAGS}")
 endif()
 
 set(PACKAGE "proj")
-- 
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