Error when building: "use of undeclared identifier 'aligned_alloc'"

[rullinoiz]

I ran ./autogen.sh and ./configure --enable-sdl and I got this error when building:

make  all-recursive
make[1]: Entering directory '/Users/OllinRuiz/projectm'
Making all in src
make[2]: Entering directory '/Users/OllinRuiz/projectm/src'
Making all in libprojectM
make[3]: Entering directory '/Users/OllinRuiz/projectm/src/libprojectM'
Making all in Renderer
make[4]: Entering directory '/Users/OllinRuiz/projectm/src/libprojectM/Renderer'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/Users/OllinRuiz/projectm/src/libprojectM/Renderer'
Making all in NativePresetFactory
make[4]: Entering directory '/Users/OllinRuiz/projectm/src/libprojectM/NativePresetFactory'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/Users/OllinRuiz/projectm/src/libprojectM/NativePresetFactory'
Making all in MilkdropPresetFactory
make[4]: Entering directory '/Users/OllinRuiz/projectm/src/libprojectM/MilkdropPresetFactory'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/Users/OllinRuiz/projectm/src/libprojectM/MilkdropPresetFactory'
make[4]: Entering directory '/Users/OllinRuiz/projectm/src/libprojectM'
depbase=`echo wipemalloc.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
/bin/sh ../../libtool  --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I../..  -Wall -Wchar-subscripts -Wformat-security -Wpointer-arith -Wshadow -Wsign-compare -Wtype-limits -DDATADIR_PATH=\""/usr/local/share/projectM\"" -I../../vendor -include ../../config.h -DSYSCONFDIR=\""/usr/local/etc"\" -I../../src/libprojectM -I../../src/libprojectM/Renderer -I../../vendor   -g -O2 -pthread -stdlib=libc++ -std=c++11 -MT wipemalloc.lo -MD -MP -MF $depbase.Tpo -c -o wipemalloc.lo wipemalloc.cpp &&\
mv -f $depbase.Tpo $depbase.Plo
libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I../.. -Wall -Wchar-subscripts -Wformat-security -Wpointer-arith -Wshadow -Wsign-compare -Wtype-limits -DDATADIR_PATH=\"/usr/local/share/projectM\" -I../../vendor -include ../../config.h -DSYSCONFDIR=\"/usr/local/etc\" -I../../src/libprojectM -I../../src/libprojectM/Renderer -I../../vendor -g -O2 -pthread -stdlib=libc++ -std=c++11 -MT wipemalloc.lo -MD -MP -MF .deps/wipemalloc.Tpo -c wipemalloc.cpp  -fno-common -DPIC -o .libs/wipemalloc.o
wipemalloc.cpp:60:11: error: use of undeclared identifier 'aligned_alloc'
    mem = aligned_alloc( align, size );
          ^
1 error generated.
make[4]: *** [Makefile:614: wipemalloc.lo] Error 1
make[4]: Leaving directory '/Users/OllinRuiz/projectm/src/libprojectM'
make[3]: *** [Makefile:655: all-recursive] Error 1
make[3]: Leaving directory '/Users/OllinRuiz/projectm/src/libprojectM'
make[2]: *** [Makefile:457: all-recursive] Error 1
make[2]: Leaving directory '/Users/OllinRuiz/projectm/src'
make[1]: *** [Makefile:527: all-recursive] Error 1
make[1]: Leaving directory '/Users/OllinRuiz/projectm'
make: *** [Makefile:417: all] Error 2

I searched around the internet for this error and they said it was defined in a version of C. I already upgraded all my packages and I have all the dependencies installed, so outdated compilers can't be an issue.

Edit: forgot to mention I'm on macOS 10.15.5

[revmischa]

Yeah I get this unless I build with xcode. Unfortunately I don't know what the solution is other than use xcode on macOS.

[rullinoiz]

Yeah I get this unless I build with xcode. Unfortunately I don't know what the solution is other than use xcode on macOS.

guess i gotta build with xcode. thanks for the info

[rullinoiz]

seems to have worked. thanks

[revmischa]

It's still an issue that would be nice to fix, something is wrong with autoconf on macOS I think

[milkdropper]

I tried to get this to build without xcode because I'm still having problems with static linking in macOS.

From my research in macOS you need to use posix_memalign instead of aligned_alloc. But if you look at the source of wipemalloc.cpp you will see this is already handled based on the definition of HAVE_ALIGNED_ALLOC. If you manually set this to 0 it will compile without xcode. Alternatively we could change the logic from checking HAVE_ALIGNED_ALLOC to instead checking if it's APPLE.

Sharing his info in case it helps others.

[milkdropper]

Further info-sharing: once you bypass the above error it will compile fine. But you won't have text menus at all (because USE_TEXT_MENU is not defined). If you define this you will then encounter compilation errors due to missing OpenGL headers in the renderer. I added this to Renderer.hpp:

#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <OpenGL/glext.h>
#include <GLUT/glut.h>

After that all will compile normally without xcode... but my issue with static linking is not resolved (even after trying to set flags for static linking). So it won't run on a third-party PC that doesn't have SDL2 installed. Even though it was a dead end for me I hope this helps someone else :) If anyone has a tip please share. I am not a developer so I am learning a lot here.

[revmischa]

This issue should be fixed in #384. @milkdropper please add a config option in configure.ac to detect whatever library (glut?) gltext requires and enable USE_TEXT_MENU if it's found