Hi Andreas,
On Wednesday 14 May 2008, you wrote:
> Hi,
> Thank you for all these hints. Are details like that described in the
> Mastering CMake book?
Yes and no.
The process how the system and the compiler are determined is described, but
not every implementation detail of the files.
> I tracked it down to:
> CMakeDetermineCCompiler.cmake: line 97:
> IF (NOT _CMAKE_TOOLCHAIN_PREFIX)
> GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME_WE)
> MESSAGE(STATUS "CMAKE_C_COMPILER: ${CMAKE_C_COMPILER}")
> MESSAGE(STATUS "COMPILER_BASENAME: ${COMPILER_BASENAME}")
> IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc")
> STRING(REGEX REPLACE "^(.+-)g?cc" "\\1" _CMAKE_TOOLCHAIN_PREFIX
> "${COMPILER _BASENAME}")
> ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc")
> ENDIF (NOT _CMAKE_TOOLCHAIN_PREFIX)
>
> MESSAGE(STATUS "TOOLCHAIN: ${_CMAKE_TOOLCHAIN_PREFIX}")
>
>
> It prints
> CMAKE_C_COMPILER:
> c:/work/QNX632/host/win32/x86/usr/bin/arm-unknown-nto-qnx6.3.0-gcc.exe
> COMPILER_BASENAME: arm-unknown-nto-qnx6
> TOOLCHAIN:
>
> Seems like get_filename_component takes the first dot to determine the
> extension!
Yes, it does.
Anyway, does the attached patch (against cvs HEAD) work for you ?
Alex
Index: CMakeDetermineCCompiler.cmake
===================================================================
RCS file: /cvsroot/CMake/CMake/Modules/CMakeDetermineCCompiler.cmake,v
retrieving revision 1.52
diff -b -u -p -r1.52 CMakeDetermineCCompiler.cmake
--- CMakeDetermineCCompiler.cmake 25 Feb 2008 14:23:14 -0000 1.52
+++ CMakeDetermineCCompiler.cmake 14 May 2008 22:07:24 -0000
@@ -88,17 +88,19 @@ IF (NOT _CMAKE_TOOLCHAIN_LOCATION)
GET_FILENAME_COMPONENT(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_C_COMPILER}" PATH)
ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
-# if we have a gcc cross compiler, they have usually some prefix, like
-# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc
-# the other tools of the toolchain usually have the same prefix
+# If we have a gcc cross compiler, they have usually some prefix, like
+# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc .
+# The other tools of the toolchain usually have the same prefix
+# NAME_WE cannot be used since then this test will fail for names lile
+# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
+# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
IF (NOT _CMAKE_TOOLCHAIN_PREFIX)
- GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME_WE)
- IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc")
- STRING(REGEX REPLACE "^(.+-)g?cc" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
- ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc")
+ GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME)
+ IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$")
+ STRING(REGEX REPLACE "^(.+-)g?cc(\\.exe)?$" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
+ ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$")
ENDIF (NOT _CMAKE_TOOLCHAIN_PREFIX)
-
# Build a small source file to identify the compiler.
IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
SET(CMAKE_C_COMPILER_ID_RUN 1)
Index: CMakeDetermineCXXCompiler.cmake
===================================================================
RCS file: /cvsroot/CMake/CMake/Modules/CMakeDetermineCXXCompiler.cmake,v
retrieving revision 1.45
diff -b -u -p -r1.45 CMakeDetermineCXXCompiler.cmake
--- CMakeDetermineCXXCompiler.cmake 25 Feb 2008 14:23:14 -0000 1.45
+++ CMakeDetermineCXXCompiler.cmake 14 May 2008 22:07:24 -0000
@@ -91,11 +91,14 @@ ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
# if we have a g++ cross compiler, they have usually some prefix, like
# e.g. powerpc-linux-g++, arm-elf-g++ or i586-mingw32msvc-g++
# the other tools of the toolchain usually have the same prefix
+# NAME_WE cannot be used since then this test will fail for names lile
+# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
+# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
IF (NOT _CMAKE_TOOLCHAIN_PREFIX)
- GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_CXX_COMPILER}" NAME_WE)
- IF (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+")
- STRING(REGEX REPLACE "^(.+-)[gc]\\+\\+" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
- ENDIF (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+")
+ GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_CXX_COMPILER}" NAME)
+ IF (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+(\\.exe)?$")
+ STRING(REGEX REPLACE "^(.+-)[gc]\\+\\+(\\.exe)?$" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
+ ENDIF (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+(\\.exe)?$")
ENDIF (NOT _CMAKE_TOOLCHAIN_PREFIX)
# This block was used before the compiler was identified by building a
Index: CMakeDetermineASMCompiler.cmake
===================================================================
RCS file: /cvsroot/CMake/CMake/Modules/CMakeDetermineASMCompiler.cmake,v
retrieving revision 1.2
diff -b -u -p -r1.2 CMakeDetermineASMCompiler.cmake
--- CMakeDetermineASMCompiler.cmake 21 Apr 2008 22:51:55 -0000 1.2
+++ CMakeDetermineASMCompiler.cmake 14 May 2008 22:07:24 -0000
@@ -43,16 +43,20 @@ IF (NOT _CMAKE_TOOLCHAIN_LOCATION)
GET_FILENAME_COMPONENT(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" PATH)
ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
-# if we have a gcc cross compiler, they have usually some prefix, like
-# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc
-# the other tools of the toolchain usually have the same prefix
+# If we have a gcc cross compiler, they have usually some prefix, like
+# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc .
+# The other tools of the toolchain usually have the same prefix
+# NAME_WE cannot be used since then this test will fail for names lile
+# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
+# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
IF (NOT _CMAKE_TOOLCHAIN_PREFIX)
- GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" NAME_WE)
- IF (COMPILER_BASENAME MATCHES "^(.+-)g?as")
- STRING(REGEX REPLACE "^(.+-)g?as" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
- ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?as")
+ GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_ASM${ASM_DIALECT}_COMPILER}" NAME)
+ IF (COMPILER_BASENAME MATCHES "^(.+-)g?as(\\.exe)?$")
+ STRING(REGEX REPLACE "^(.+-)g?as(\\.exe)?$" "\\1" _CMAKE_TOOLCHAIN_PREFIX "${COMPILER_BASENAME}")
+ ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?as(\\.exe)?$")
ENDIF (NOT _CMAKE_TOOLCHAIN_PREFIX)
+
INCLUDE(CMakeFindBinUtils)
SET(CMAKE_ASM${ASM_DIALECT}_COMPILER_ENV_VAR "ASM")
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