man mkc_check_funclib (1): detects presense of function in a library.

SYNOPSIS

mkc_check_funclib <functionname> [libraries...]
mkc_check_funclib -h

DESCRIPTION

mkc_check_funclib detects presense of function in a library by compiling and linking a test program. As a result it prints either 1 (true) or 0 (false) to stdout.

OPTIONS

-h: display help message

ENVIRONMENT

CC: Compiler. By default cc is used.
CPPFLAGS, CFLAGS: Options passed to the compiler, for example -I for additional directories that contain header files.
LDFLAGS: Options passed to the linker (compiler, set by CC variable), for example, -L/usr/local/lib
LDADD: Extra libraries, for example, -lm.
MKC_VERBOSE: If set to 1, verbose messages are output to stderr.
MKC_SHOW_CACHED: If set to 1 and MKC_VERBOSE is set to 1, cached results are output to stderr.
MKC_CACHEDIR: Directory where temporary and cache files are created. If unset they are created in a current directory.
MKC_NOCACHE: All results are cached unless MKC_NOCACHE variable is set to 1.
MKC_DELETE_TMPFILES: If set to 1, temporary files are removed.

EXAMPLES

   mkc_check_funclib dlopen dl
   mkc_check_funclib dlopen
   mkc_check_funclib strlcpy
   mkc_check_funclib select socket

AUTHOR