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ENH: Auto-import symbols for cygwin executables 

This enables the --enable-auto-import linker flag on Cygwin when linking
executables.  It works with the old gcc 3.x compiler and is necessary
for the new gcc 4.x compiler.  See issue #9071.
This commit is contained in:
Brad King 2009-05-27 11:33:37 -04:00
parent bd1e91a460
commit a6bc1c34b1
2 changed files with 13 additions and 0 deletions
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1
Modules/Platform/CYGWIN.cmake
View File

@ -1,6 +1,7 @@
SET(WIN32 1)
SET(CYGWIN 1)
SET(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--enable-auto-import")
SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared -Wl,--export-all-symbols -Wl,--enable-auto-import")
SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
SET(CMAKE_DL_LIBS "-lgdi32" )

12
bootstrap
View File

@ -55,6 +55,13 @@ cmake_bootstrap_system_libs=""
cmake_bootstrap_qt_gui=""
cmake_bootstrap_qt_qmake=""
# Determine whether this is a Cygwin environment.
if echo "${cmake_system}" | grep CYGWIN >/dev/null 2>&1; then
cmake_system_cygwin=true
else
cmake_system_cygwin=false
fi
# Determine whether this is a MinGW environment.
if echo "${cmake_system}" | grep MINGW >/dev/null 2>&1; then
cmake_system_mingw=true
@ -598,6 +605,11 @@ cmake_c_flags=${CFLAGS}
cmake_cxx_flags=${CXXFLAGS}
cmake_ld_flags=${LDFLAGS}
# Add Cygwin-specific flags
if ${cmake_system_cygwin}; then
cmake_ld_flags="${LDFLAGS} -Wl,--enable-auto-import"
fi
# Add Carbon framework on Darwin
if ${cmake_system_darwin}; then
cmake_ld_flags="${LDFLAGS} -framework Carbon"