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authorBill Hoffman <bill.hoffman@kitware.com>2003-01-21 17:50:48 (GMT)
committerBill Hoffman <bill.hoffman@kitware.com>2003-01-21 17:50:48 (GMT)
commit2f4ea98a4cf35b0aa6ced86c98c4b96984ef4fb7 (patch)
tree2e7ba2c7d45537691296edc194f605f623bcc3a7 /Modules/CMakeTestCCompiler.cmake
parent110bc04bd0125ef746ad8ea239c632831f7c5075 (diff)
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add a fatal error, and make sure c and c++ compilers work before using them
Diffstat (limited to 'Modules/CMakeTestCCompiler.cmake')
-rw-r--r--Modules/CMakeTestCCompiler.cmake19
1 files changed, 19 insertions, 0 deletions
diff --git a/Modules/CMakeTestCCompiler.cmake b/Modules/CMakeTestCCompiler.cmake
new file mode 100644
index 0000000..8e88c0a
--- /dev/null
+++ b/Modules/CMakeTestCCompiler.cmake
@@ -0,0 +1,19 @@
+# This file is used by EnableLanguage in cmGlobalGenerator to
+# determine that that selected C compiler can actually compile
+# and like the most basic of programs. If not, a fatel error
+# is set and cmake stops processing commands and will not generate
+# any makefiles or projects.
+MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER}")
+WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeTmp/testCCompiler.c "int main(){return 0;}")
+TRY_COMPILE(CMAKE_C_COMPILER_WORKS ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}/CMakeTmp/testCCompiler.c
+ OUTPUT_VARIABLE OUTPUT)
+IF(NOT CMAKE_C_COMPILER_WORKS)
+ MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} -- broken")
+ MESSAGE(FATAL_ERROR "The C compiler \"${CMAKE_C_COMPILER}\" "
+ "is not able to compile a simple tests program.\nIt fails "
+ "with the following output:\n ${OUTPUT}\n\n"
+ "CMake will not be able to correctly generate this project.")
+ELSE(NOT CMAKE_C_COMPILER_WORKS)
+ MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} -- works")
+ENDIF(NOT CMAKE_C_COMPILER_WORKS)