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ENH: Fix eCos.cmake to not require a forced compiler 

- Search for libtarget.a explicitly
  - Do not complain about compiler id during try-compile
This commit is contained in:
Brad King 2008-02-11 17:01:02 -05:00
parent a75079d9e0
commit f0cee3fe4c
1 changed files with 13 additions and 11 deletions
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24
Modules/Platform/eCos.cmake
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@ -20,27 +20,29 @@ SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
INCLUDE(Platform/UnixPaths)
# eCos can be built only with gcc
IF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
GET_PROPERTY(_IN_TC GLOBAL PROPERTY IN_TRY_COMPILE)
IF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU" AND NOT _IN_TC)
MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
ENDIF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
IF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
ENDIF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
ENDIF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU" AND NOT _IN_TC)
IF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" AND NOT _IN_TC)
MESSAGE(FATAL_ERROR "GNU g++ is required for eCos")
ENDIF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" AND NOT _IN_TC)
# this is a header which is part of every eCos "installation"
# it would be better to search for libtarget.a, but this isn't possible
# at this point in the setup process, since CMAKE_SIZEOF_VOID_P is still
# unknown, which is used in FIND_LIBRARY()
# find eCos system files
FIND_PATH(ECOS_SYSTEM_CONFIG_HEADER_PATH NAMES pkgconf/system.h)
FIND_LIBRARY(ECOS_SYSTEM_TARGET_LIBRARY NAMES libtarget.a)
IF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
MESSAGE(FATAL_ERROR "Could not find eCos pkgconf/system.h. Build eCos first and set up CMAKE_FIND_ROOT_PATH correctly.")
ENDIF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
GET_FILENAME_COMPONENT(ECOS_LIBTARGET_DIRECTORY "${ECOS_SYSTEM_CONFIG_HEADER_PATH}" PATH)
IF(NOT ECOS_SYSTEM_TARGET_LIBRARY)
MESSAGE(FATAL_ERROR "Could not find eCos \"libtarget.a\". Build eCos first and set up CMAKE_FIND_ROOT_PATH correctly.")
ENDIF(NOT ECOS_SYSTEM_TARGET_LIBRARY)
GET_FILENAME_COMPONENT(ECOS_LIBTARGET_DIRECTORY "${ECOS_SYSTEM_TARGET_LIBRARY}" PATH)
INCLUDE_DIRECTORIES(${ECOS_SYSTEM_CONFIG_HEADER_PATH})
ADD_DEFINITIONS(-D__ECOS__=1 -D__ECOS=1)
SET(ECOS_LIBTARGET_DIRECTORY "${ECOS_LIBTARGET_DIRECTORY}/lib")
# special link commands for eCos executables
SET(CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> -nostdlib -nostartfiles -L${ECOS_LIBTARGET_DIRECTORY} -Ttarget.ld <LINK_LIBRARIES>")