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Only enable the test when using GNU make 

The makefile used in the test uses $(shell ...), which is
AFAIK a GNU extension, and will probably not work e.g. with OpenBSD make.
According to the FreeBSD make manpage their make has a != assignment,
which seems to do something similar, but I don't have such a system
around for testing.
Also, the point of this test is not to write a portable makefile,
but to check whether cmake --find-package prints a correct string.

Alex
This commit is contained in:
Alex Neundorf 2011-08-17 23:44:34 +02:00
parent 3011149947
commit 7d693108fa
1 changed files with 20 additions and 10 deletions
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12
Tests/FindPackageModeMakefileTest/CMakeLists.txt
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@ -1,8 +1,16 @@
# the test program links against the png lib, so test first whether it exists
if(UNIX AND "${CMAKE_GENERATOR}" MATCHES "Makefile")
# Test whether the make is GNU make, and only add the test in this case,
# since the configured makefile in this test uses $(shell ...), which
# is AFAIK a GNU make extension. Alex
execute_process(COMMAND ${CMAKE_MAKE_PROGRAM} -v
OUTPUT_VARIABLE makeVersionOutput
TIMEOUT 10)
string(TOUPPER "${makeVersionOutput}" MAKE_VERSION_OUTPUT)
if("${MAKE_VERSION_OUTPUT}" MATCHES ".*GNU MAKE.*")
# build a library which we can search during the test
add_library(foo STATIC foo.cpp)
@ -18,3 +26,5 @@ if(UNIX AND "${CMAKE_GENERATOR}" MATCHES "Makefile")
add_test(FindPackageModeMakefileTest ${CMAKE_MAKE_PROGRAM} -f ${CMAKE_CURRENT_BINARY_DIR}/ConfMakefile )
endif()
endif()