I want to try compiling all BRL-CAD *.c file with a C++ compiler.
When I try it by setting, e.g., CC to:
CC='gcc -x c++'
and then running cmake I get CMake errors:
-- The C compiler identification is unknown
-- The CXX compiler identification is GNU 4.7.2
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- broken
CMake Error at /usr/local/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:61
(message):
The C compiler "/usr/bin/gcc" is not able to compile a simple test program.
It fails with the following output:
Change Dir: /usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp
Run Build Command:/usr/bin/make "cmTryCompileExec2936276730/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec2936276730.dir/build.make
CMakeFiles/cmTryCompileExec2936276730.dir/build
make[1]: Entering directory
`/usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp'
/usr/local/bin/cmake -E cmake_progress_report
/usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp/CMakeFiles 1
Building C object
CMakeFiles/cmTryCompileExec2936276730.dir/testCCompiler.c.o
/usr/bin/gcc -x c++ -o
CMakeFiles/cmTryCompileExec2936276730.dir/testCCompiler.c.o -c
/usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp/testCCompiler.c
/usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp/testCCompiler.c:2:3:
error: #error "The CMAKE_C_COMPILER is set to a C++ compiler"
make[1]: *** [CMakeFiles/cmTryCompileExec2936276730.dir/testCCompiler.c.o]
Error 1
make[1]: Leaving directory
`/usr/local/src2/brlcad-build-c++/CMakeFiles/CMakeTmp'
make: *** [cmTryCompileExec2936276730/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:131 (project)
-- Configuring incomplete, errors occurred!
Is there any easy way to make a configuration that will use C++ on the
whole BRL-CAD source?
Best regards,
-Tom
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