nasm - NASM, the Netwide Assembler

This is a build2 package repository for Netwide Assembler (NASM), an asssembler for the x86 CPU architecture portable to nearly every modern platform, and with code generation for many platforms old and new.

This file contains setup instructions and other details that are more appropriate for development rather than consumption. If you want to use nasm in your build2-based project, then instead see the accompanying PACKAGE-README.md file.

The development setup for nasm uses the standard bdep-based workflow. For example:

git clone https://github.com/build2-packaging/nasm
cd nasm

bdep init -C @gcc cc config.cxx=g++
bdep update
bdep test

New Version

Requires perl being installed and in PATH

Upstream uses a mix of perl and make to configure the project, which we naturally don't want to use here. Instead there is the root ./gen-files.sh bash script that will parse Makefile.in, extract all perl command lines, convert to bash syntax (eg. ${VAR} instead of $(VAR)) then execute each line one by one.

Using script

$ cd ./nasm/nasm/gen
git -C ../../../upstream fetch && git -C ../../../upstream checkout nasm-X.Y.Z

../../../gen-files.sh ../../../upstream/Makefile.in # generated files will automatically be copied
                                                    # relative to the current working directory
# optional: do for msvc as well just to be sure
../../../gen-files.sh ../../../upstream/Mkfiles/msvc.mak
git -C ../../../upstream clean -fdx .               # clean upstream to get rid of duplicates
git status                                          # see generated files
bdep update                                         # make sure it builds

Redundant files are listed in the ./nasm/nasm/.gitignore, but append this list if there are new irrelevant files.

Manually

See upstream INSTALL instructions.

Note: It may be necessary to do this on multiple platforms (eg. Linux & Windows) to generate all files.

# from repo root in bash
before=$(mktemp)
after=$(mktemp)
# find all existing files
$(cd ./upstream && find . -type f -printf "%T@ %p\n" | sort > $before)

# generate all source files using upstream script (assuming *nix here)
$(cd ./upstream && ./autogen.sh)

# find all new, generated files
$(cd ./upstream && find . -type f -printf "%T@ %p\n" | sort > $after)

# compare to find new files
new_files=$(comm -13 $before $after)
echo "$new_files" | awk '{print $2}'

rm $before $after