man mkc_check_sizeof (1): detects a sizeof(type).

SYNOPSIS

mkc_check_sizeof type [headers...]
mkc_check_sizeof -h

DESCRIPTION

mkc_check_sizeof detects sizeof( type ) by compiling a test program. mkc_check_sizeof doesn't run a generated executable and therefore is ready for using a cross-compiler. headers are #include-d.

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.
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_sizeof 'void*'
   mkc_check_sizeof long-long
   mkc_check_sizeof size_t stdlib.h

AUTHOR