Building liquid-dsp 1.2.0 on Mac OS X with LLVM/Clang

[muellermartin]

Building the release tarball of version 1.2.0 of liquid-dsp fails when using LLVM/Clang on Mac OS X (documented in troubleshooting section of manual/website). Currently the suggested fix is to use GCC instead (related issue #48), but this is not favored by Homebrew's maintainers (see isse Homebrew/homebrew-core#2664). Therefore I tried to build the latest release with LLVM/Clang and the only issues seems to be the configure script checks for malloc, realloc, free, memset, memmove in libc and sinf, cosf, expf, cargf, cexpf, crealf, cimagf, sqrtf in libm:

checking for malloc, realloc, free, memset, memmove in -lc... no
configure: error: Need standard c library!

and

checking for sinf, cosf, expf, cargf, cexpf, crealf, cimagf, sqrtf in -lm... no
configure: error: Need standard (complex) math library!

Possible fixes:

• Release current master if applicable
• Patch release for liquid-dsp e.g. 1.2.1 using the relevant changes from master

The patch could simply replace lines 160 to 166 in configure.ac with the corresponding lines in the master branch.

If this patch is applied building with LLVM/Clang succeeds and make check passes (PASSED ALL 42373 CHECKS with WARNINGS : 34).

[brian-armstrong]

👍 for a new release. The current master has a lot of good updates.

[muellermartin]

Like #48 this is no longer an issue with the current version of liquid-dsp (1.3.0).