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-rw-r--r--cmake/Toolchain-cross-m32.cmake23
1 files changed, 23 insertions, 0 deletions
diff --git a/cmake/Toolchain-cross-m32.cmake b/cmake/Toolchain-cross-m32.cmake
new file mode 100644
index 00000000..7918c604
--- /dev/null
+++ b/cmake/Toolchain-cross-m32.cmake
@@ -0,0 +1,23 @@
+set(CMAKE_C_FLAGS "-m32" CACHE STRING "C compiler flags" FORCE)
+set(CMAKE_CXX_FLAGS "-m32" CACHE STRING "C++ compiler flags" FORCE)
+
+set(LIB32 /usr/lib) # Fedora
+
+if(EXISTS /usr/lib32)
+ set(LIB32 /usr/lib32) # Arch, Solus
+endif()
+
+set(CMAKE_SYSTEM_LIBRARY_PATH ${LIB32} CACHE STRING "system library search path" FORCE)
+set(CMAKE_LIBRARY_PATH ${LIB32} CACHE STRING "library search path" FORCE)
+
+# this is probably unlikely to be needed, but just in case
+set(CMAKE_EXE_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "executable linker flags" FORCE)
+set(CMAKE_SHARED_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "shared library linker flags" FORCE)
+set(CMAKE_MODULE_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "module linker flags" FORCE)
+
+# on Fedora and Arch and similar, point pkgconfig at 32 bit .pc files. We have
+# to include the regular system .pc files as well (at the end), because some
+# are not always present in the 32 bit directory
+if(EXISTS ${LIB32}/pkgconfig)
+ set(ENV{PKG_CONFIG_LIBDIR} ${LIB32}/pkgconfig:/usr/share/pkgconfig:/usr/lib/pkgconfig:/usr/lib64/pkgconfig)
+endiF()