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authorBill Hoffman <bill.hoffman@kitware.com>2002-12-06 15:09:41 (GMT)
committerBill Hoffman <bill.hoffman@kitware.com>2002-12-06 15:09:41 (GMT)
commitb3ca217a2323ece7bca802107f9476ec81cb1ef5 (patch)
tree98517690a76635d63ea2b53ec317f106d69db1d4 /Modules/CMakeDetermineCCompiler.cmake
parent35fb6f22baa7b3f1ca9f7e29be41c4b91b14554a (diff)
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clean up compiler picking code
Diffstat (limited to 'Modules/CMakeDetermineCCompiler.cmake')
-rw-r--r--Modules/CMakeDetermineCCompiler.cmake14
1 files changed, 6 insertions, 8 deletions
diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake
index 2198675..a60bd72 100644
--- a/Modules/CMakeDetermineCCompiler.cmake
+++ b/Modules/CMakeDetermineCCompiler.cmake
@@ -8,7 +8,7 @@
IF(NOT CMAKE_C_COMPILER)
SET(CMAKE_CXX_COMPILER_INIT NOTFOUND)
- # if the user has specified CC via the environment, then use that without checking
+ # prefer the environment variable CC
IF($ENV{CC} MATCHES ".+")
GET_FILENAME_COMPONENT(CMAKE_C_COMPILER_INIT $ENV{CC} PROGRAM PROGRAM_ARGS CMAKE_C_FLAGS_ENV_INIT)
IF(EXISTS ${CMAKE_C_COMPILER_INIT})
@@ -17,12 +17,14 @@ IF(NOT CMAKE_C_COMPILER)
ENDIF(EXISTS ${CMAKE_C_COMPILER_INIT})
ENDIF($ENV{CC} MATCHES ".+")
+ # next try prefer the compiler specified by the generator
IF(CMAKE_GENERATOR_CC)
IF(NOT CMAKE_CC_COMPILER_INIT)
SET(CMAKE_CC_COMPILER_INIT ${CMAKE_GENERATOR_CC})
ENDIF(NOT CMAKE_CC_COMPILER_INIT)
ENDIF(CMAKE_GENERATOR_CC)
+ # if no compiler has been specified yet, then look for one
IF(NOT CMAKE_CC_COMPILER_INIT)
# if not in the envionment then search for the compiler in the path
SET(CMAKE_C_COMPILER_LIST gcc cc cl bcc )
@@ -30,16 +32,11 @@ IF(NOT CMAKE_C_COMPILER)
GET_FILENAME_COMPONENT(CMAKE_C_COMPILER_INIT
${CMAKE_C_COMPILER_FULLPATH} NAME)
ENDIF(NOT CMAKE_CC_COMPILER_INIT)
- # set this to notfound right after so that it is searched for each time this
- # file is included
+
SET(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_INIT} CACHE STRING "C compiler")
- IF($ENV{CC} MATCHES ".+")
- IF(NOT CMAKE_C_COMPILER)
- MESSAGE(SEND_ERROR "Could not find compiler set in environment variable CC:\n$ENV{CC}, make sure CC does not have flags in it, use CFLAGS instead.")
- ENDIF(NOT CMAKE_C_COMPILER)
- ENDIF($ENV{CC} MATCHES ".+")
ENDIF(NOT CMAKE_C_COMPILER)
MARK_AS_ADVANCED(CMAKE_C_COMPILER)
+
FIND_PROGRAM(CMAKE_AR NAMES ar PATHS /bin /usr/bin /usr/local/bin)
FIND_PROGRAM(CMAKE_RANLIB NAMES ranlib PATHS /bin /usr/bin /usr/local/bin)
@@ -47,6 +44,7 @@ IF(NOT CMAKE_RANLIB)
SET(CMAKE_RANLIB : CACHE INTERNAL "noop for ranlib")
ENDIF(NOT CMAKE_RANLIB)
MARK_AS_ADVANCED(CMAKE_RANLIB)
+
# test to see if the c compiler is gnu
EXEC_PROGRAM(${CMAKE_C_COMPILER} ARGS -E ${CMAKE_ROOT}/Modules/CMakeTestGNU.c OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
IF(NOT CMAKE_COMPILER_RETURN)