[Bug 243855] devel/raylib: fix build on powerpc64 elfv2

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243855

--- Comment #1 from [email protected] ---
A commit references this bug:

Author: pkubaj
Date: Tue Feb  4 10:28:59 UTC 2020
New revision: 525140
URL: https://svnweb.freebsd.org/changeset/ports/525140

Log:
  devel/raylib: fix build on powerpc64 elfv2

  Clang has issues compiling this port on powerpc64 elfv2:
  Assertion failed: ((Op.getOpcode() == ISD::FP_TO_SINT ||
Subtarget.hasFPCVT()) && "i64 FP_TO_UINT is supported only with FPCVT"),
function LowerFP_TO_INTForReuse, file
/poudriere/jails/powerpc64-elfv2-pkubaj/usr/src/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelLowering.cpp,
line 7281.
  Stack dump:
  0.    Program arguments: /usr/bin/cc -cc1 -triple
powerpc64-unknown-freebsd13.0 -emit-obj -disable-free -main-file-name raudio.c
-mrelocation-model pic -pic-level 2 -mthread-model posix -relaxed-aliasing
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu ppc64 -target-feature +secure-plt -mfloat-abi hard
-dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer
-coverage-notes-file
/wrkdirs/usr/ports/devel/raylib/work/.build/src/CMakeFiles/raylib.dir/raudio.c.gcno
-resource-dir /usr/lib/clang/9.0.1 -dependency-file
src/CMakeFiles/raylib.dir/raudio.c.o.d -sys-header-deps -MT
src/CMakeFiles/raylib.dir/raudio.c.o -isystem /usr/local/include -isystem
/usr/local/include -D GLFW_DLL -D GRAPHICS_API_OPENGL_33 -D PLATFORM_DESKTOP -D
RAYLIB_CMAKE=1 -D raylib_EXPORTS -I . -I
/wrkdirs/usr/ports/devel/raylib/work/raylib-2.5.0/src/. -O2
-Werror=implicit-function-declaration -Werror=pointer-arith -std=gnu99
-fdebug-compilation-dir /wrkdirs/usr/ports/devel/rayli
 b/work/.build -ferror-limit 19 -fmessage-length 0 -stack-protector 2
-fno-signed-char -fobjc-runtime=gnustep -fdiagnostics-show-option
-vectorize-loops -vectorize-slp -faddrsig -o
src/CMakeFiles/raylib.dir/raudio.c.o -x c
/wrkdirs/usr/ports/devel/raylib/work/raylib-2.5.0/src/raudio.c
  1.    <eof> parser at end of file
  2.    Code generation
  3.    Running pass 'Function Pass Manager' on module
'/wrkdirs/usr/ports/devel/raylib/work/raylib-2.5.0/src/raudio.c'.
  4.    Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on
function '@ma_calculate_frame_count_after_src'
  #0 0x000000001371e818 (/usr/bin/cc+0x1371e818)
  #1 0x000000001371ee94 (/usr/bin/cc+0x1371ee94)
  #2 0x000000001371c158 (/usr/bin/cc+0x1371c158)
  #3 0x000000001371f60c (/usr/bin/cc+0x1371f60c)
  #4 0x000000081520176c (/lib/libthr.so.3+0x1b76c)
  cc: error: unable to execute command: Abort trap (core dumped)
  cc: error: clang frontend command failed due to signal (use -v to see
invocation)
  FreeBSD clang version 9.0.1 ([email protected]:llvm/llvm-project.git
c1a0a213378a458fbea1a5c77b315c7dce08fd05) (based on LLVM 9.0.1)
  Target: powerpc64-unknown-freebsd13.0
  Thread model: posix
  InstalledDir: /usr/bin

  Use GCC instead. The issue with Clang has been reported upstream.

  PR:           243855
  Approved by:  [email protected] (maintainer)

Changes:
  head/devel/raylib/Makefile

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