libretro / libretro/libretro-super
osx 10.5 ppc - mame incorrectly sets arch
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- Dominant language
- Shell
- Stars
- 470
- Forks
- 332
- Avg merge
- 1d 18h
- Merged PRs (30d)
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Description
My powerpc G4 (32bit) is incorrectly detected as 64bit by libretro-mame.
Precompiling src/emu/emu.h...
c++ -MMD -MP -MP -D__LIBRETRO__ -DPTR64=1 -DCRLF=2 -DOSX_PPC -DFLAC__NO_DLL
-DLUA_COMPAT_ALL -DLUA_COMPAT_5_1 -DLUA_COMPAT_5_2 -I../../../../../src/osd
-I../../../../../src/emu -I../../../../../src/lib/util -O2
-m64
-fPIC -Wno-unused-label -flax-vector-conversions
-arch ppc64
-pipe -Wno-deprecated-declarations -O3 -fno-strict-aliasing -Wno-unknown-pragmas -Wall -Wcast-align -Wundef -Wformat-security -Wwrite-strings -Wno-sign-compare -Wno-conversion -Wno-unused-result -Wno-array-bounds
-m64
To make matters worse. -arch is not supported on the gcc compilers for osx ppc that are modern enough to compile mame. For osx ppc, -arch needs to be omitted in order to build mame.
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing the libretro-mame build configuration that emits PTR64, -m64, and -arch ppc64 for OSX_PPC, using the compiler output in the issue as the reproduction clue. Done means a 32-bit OSX PPC build no longer selects 64-bit flags or passes -arch, while other targets retain their expected settings.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, shell
- Domain
- build-system, operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100