Checking whether the ASM_YASM compiler is GNU using "--version" did not match "(GNU assembler)|(GCC)|(Free Software Foundation)":
yasm 1.2.0
Compiled on Jul  3 2014.
Copyright (c) 2001-2011 Peter Johnson and other Yasm developers.
Run yasm --license for licensing overview and summary.
Checking whether the ASM_YASM compiler is HP using "-V" did not match "HP C":
yasm: warning: unrecognized option `-V'
yasm: No input files specified
Checking whether the ASM_YASM compiler is Intel using "--version" did not match "(ICC)":
yasm 1.2.0
Compiled on Jul  3 2014.
Copyright (c) 2001-2011 Peter Johnson and other Yasm developers.
Run yasm --license for licensing overview and summary.
Checking whether the ASM_YASM compiler is SunPro using "-V" did not match "Sun C":
yasm: warning: unrecognized option `-V'
yasm: No input files specified
Checking whether the ASM_YASM compiler is XL using "-qversion" did not match "XL C":
yasm: warning: unrecognized option `-qversion'
yasm: No input files specified
Checking whether the ASM_YASM compiler is MSVC using "/?" did not match "Microsoft":
yasm: file name already has no extension: output will be in `yasm.out'
yasm: FATAL: Could not open input file
Checking whether the ASM_YASM compiler is TI using "-h" did not match "Texas Instruments":
usage: yasm [option]* file
Options:
    --version               show version text
    --license               show license text
    -h, --help              show help text
    --arch=<arch>           select architecture (list with -a help)
     -a <arch>
    --parser=<parser>       select parser (list with -p help)
     -p <parser>
    --preproc=<preproc>     select preprocessor (list with -r help)
     -r <preproc>
    --oformat=<format>      select object format (list with -f help)
     -f <format>
    --dformat=<debug>       select debugging format (list with -g help)
     -g <debug>
    --lformat=<list>        select list format (list with -L help)
     -L <list>
    --list=<listfile>       name of list-file output
     -l <listfile>
    --objfile=<filename>    name of object-file output
     -o <filename>
    --mapfile=<filename>    name of map-file output
    --machine=<machine>     select machine (list with -m help)
     -m <machine>
    --force-strict          treat all sized operands as if `strict' was used
    -w                      inhibits warning messages
    -W                      enables/disables warning
    -M                      generate Makefile dependencies on stdout
    -E <file>               redirect error messages to file
    -s                      redirect error messages to stdout
    -e, --preproc-only      preprocess only (writes output to stdout by default)
    -i <path>               add include path
    -I <path>               add include path
    -P <filename>           pre-include file
    -d <macro[=value]>      pre-define a macro, optionally to value
    -D <macro[=value]>      pre-define a macro, optionally to value
    -u <macro>              undefine a macro
    -U <macro>              undefine a macro
    -X <style>              select error/warning message style (`gnu' or `vc')
    --prefix=<prefix>       prepend argument to name of all external symbols
    --suffix=<suffix>       append argument to name of all external symbols
    --postfix=<suffix>      append argument to name of all external symbols

Files are asm sources to be assembled.

Sample invocation:
   yasm -f elf -o object.o source.asm

Report bugs to bug-yasm@tortall.net
Checking whether the ASM_YASM compiler is GNU using "--version" did not match "(GNU assembler)|(GCC)|(Free Software Foundation)":
yasm 1.2.0
Compiled on Jul  3 2014.
Copyright (c) 2001-2011 Peter Johnson and other Yasm developers.
Run yasm --license for licensing overview and summary.
Checking whether the ASM_YASM compiler is IAR using "" did not match "IAR Assembler":
yasm: No input files specified