The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The asm versions seem to fail to build on OpenBSD when PIC is enabled on i386
because more registered are used in the asm part then there are available.
The __builtin_ia32_loadups and __builtin_ia32_storeups functions are GCC
specific and are not supported by compilers like LLVM. Instead use the more
often supported SSE intrinsics.
Different operation systems (Unix vs. Windows) use different line ending types.
It can easily happen that users from different systems edit files and replace
all line endings of a file with the system specific version. This screws up
diffs and makes merges harder.
Git can normalize line endings for specific files and avoid this problem.
Binary files should be marked to avoid accidentally normalization.
The *.d depends files for make just list the files used when building an
object file. Removing a file listed in such a dependency file causes make to
search for a way to recreate it. This usually cannot work because these files
aren't autogenerated.
The gcc option -MP can be used to generate empty rule for these files. Removing
a file in a dependency list will then execute this empty rule and continue with
the execution of the creation of the object file. This compilation process will
then automatically correct the dependency file.
LoadNone cannot initialize n-bytes of the texture where n is the size of a
pointer on an architecture. It is most likely too small to initialize a big
texture but it can be too big and overwrite unrelated parts of the memory.
n.pepinpe requested in #540 to allow overwriting the automatically searched
CFLAGS and LIBS for used libraries. This should allow distributors to set the
build configuration without patching the makefile. This is important for
systems were pkg-config or sdl-config aren't normally used.
n.pepinpe requested in #540 to allow overwriting the automatically searched
CFLAGS and LIBS for used libraries. This should allow distributors to set the
build configuration without patching the makefile. This is important for
systems were pkg-config or sdl-config aren't normally used.
The GCC introduced Link-time optimization in GCC 4.5 (2010-04-14). This should
be long enough available that interested users have upgraded to a compiler
supporting it.
The MSVC project already enabled WholeProgramOptimization since a long time.
Enabling it by default in GCC seems to be equally valid.
The GCC manual states for different parameters that the options for compilation
must also be used when linking. The options for compilation are stored in
CXXFLAGS and added to LINK.o to fix the behavior.
Option which need this are for example -fPIC/-fPIE or -flto.
Some linker on different platforms don't handle the garbage collection
correctly and create extreme bloated binaries. Therefore, leave it to the user
to enable this feature or not.
The byte swapping was realized using inline assembler code using the bswap
instruction. This was less portable and even resulted in build failures when
compiling for OSX. It also reduced the effectivness of the optimizer slightly.
Instead the builtin functions of the compiler can be used to do the same.
MacOSX and MinGW don't provide gl.pc or glu.pc to find the cflags or libs using
pkg-config. Removing this search and replacing it with an hardcoded value is
easier on these platforms.
The POSTFIX make option is useful for distributions to compile different
versions of the plugin in parallel. The object files will be stored in a
directory with the postfix appended and the linker result will also have this
postfix appended.
The CROSS_COMPILE make option can be used to automatically prepend the prefix
to all build relevant tools to seamlessly allow cross compilation without
setting each tool name separately.
Cross compiling for MinGW32 would can be done using
$ make -C projects/unix/ CROSS_COMPILE=i686-pc-mingw32- HOST_CPU=i686 UNAME=MINGW
