This patch adds a module 'dcomp-script', that supports compiling D source code to binary from within a shell script or Makefile. Thus it's the basis for writing D programs with the GNU Build System.
D has its own build system, called 'dub' [1], but that's overkill for simple executables with few dependencies. The 'dcomp-script' module ignores 'dub' and instead invokes the D compiler directly. [1] https://dub.pm/ 2025-03-31 Bruno Haible <br...@clisp.org> dcomp-script: New module. * m4/dcomp.m4: New file. * build-aux/dcomp.sh.in: New file. * modules/dcomp-script: New file. ================================= m4/dcomp.m4 ================================= # dcomp.m4 # serial 1 dnl Copyright (C) 2025 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This file is offered as-is, without any warranty. # There are three D implementations, see # <https://en.wikipedia.org/wiki/D_(programming_language)#Implementations> # <https://wiki.dlang.org/Compilers> # <https://dub.pm/dub-reference/build_settings/#buildoptions> # Although each has different possible options, a few options are accepted by # all of the implementations: -c, -I, -g, -O. Some essential options, however, # are different: # gdc ldc2 dmd # ---------- ------------------- ------------ # -oFILE -of=FILE, --of=FILE -of=FILE # -lLIBRARY -L -lLIBRARY -L=-lLIBRARY # -LDIR -L -LDIR -L=-LDIR # -Wl,OPTION -L OPTION -L=OPTION # Checks for a D implementation. # Sets DC and DFLAGS (options that can be used with "$DC"). AC_DEFUN([gt_DCOMP], [ AC_MSG_CHECKING([for D compiler]) pushdef([AC_MSG_CHECKING],[:])dnl pushdef([AC_CHECKING],[:])dnl pushdef([AC_MSG_RESULT],[:])dnl AC_ARG_VAR([DC], [D compiler command]) AC_ARG_VAR([DFLAGS], [D compiler options]) dnl On OpenBSD, gdc is called 'egdc' and works less well than dmd. AC_CHECK_TOOLS([DC], [gdc ldc2 dmd egdc]) popdef([AC_MSG_RESULT])dnl popdef([AC_CHECKING])dnl popdef([AC_MSG_CHECKING])dnl if test -n "$DC"; then ac_result="$DC" else ac_result="no" fi AC_MSG_RESULT([$ac_result]) AC_SUBST([DC]) if test -z "$DFLAGS" && test -n "$DC"; then case `$DC --version | sed -e 1q` in gdc* | egdc* | LDC*) DFLAGS="-g -O2" ;; *) DFLAGS="-g -O" ;; esac fi AC_SUBST([DFLAGS]) ]) ============================ build-aux/dcomp.sh.in ============================ #!/bin/sh # Compile a D program, library, or compilation unit. # Copyright (C) 2025 Free Software Foundation, Inc. # Written by Bruno Haible <br...@clisp.org>, 2025. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. # Usage: /bin/sh dcomp.sh [OPTION] SOURCE.d ... # where the supported OPTIONs are: # -I DIR # -c # -g # -O (mapped to -O or -O2, depending on implementation) # -o FILE (for libtool compatility) # -lLIBRARY (for libtool compatility) # -LDIR (for libtool compatility) # -pthread (for libtool compatility) # -Wl,OPTION (for libtool compatility) # Find out which implementation we are using. case `@DC@ --version | sed -e 1q` in gdc* | egdc*) flavor=gdc ;; LDC*) flavor=ldc ;; DMD*) flavor=dmd ;; *) echo "Warning: implementation flavor of '"'@DC@'"' not recognized." 1>&2 flavor=dmd ;; esac # In order to construct a command that invokes the D compiler, we need 'eval', # because some of the arguments may contain spaces. options_for_print= options_for_eval= # Protecting special characters, hiding them from 'eval': # Double each backslash. sed_protect_1='s/\\/\\\\/g' # Escape each dollar, backquote, double-quote. sed_protect_2a='s/\$/\\$/g' sed_protect_2b='s/`/\\`/g' sed_protect_2c='s/"/\\"/g' # Add double-quotes at the beginning and end of the word. sed_protect_3a='1s/^/"/' sed_protect_3b='$s/$/"/' func_add_word_to_options () { options_for_print="${options_for_print:+$options_for_print }$1" word_protected=`echo "$1" | sed -e "$sed_protect_1" -e "$sed_protect_2a" -e "$sed_protect_2b" -e "$sed_protect_2c" -e "$sed_protect_3a" -e "$sed_protect_3b"` options_for_eval="${options_for_eval:+$options_for_eval }$word_protected" } # Process the arguments. next_is_arg_of= for arg do if test -z "$next_is_arg_of"; then case "$arg" in -I | -l | -L) echo "dcomp: Unsupported option: $arg. Combine with next argument." 1>&2 exit 1 ;; -I* | -c | -g) func_add_word_to_options "$arg" ;; -O) case "$flavor" in gdc | ldc) func_add_word_to_options "-O2" ;; dmd) func_add_word_to_options "-O" ;; esac ;; -o) next_is_arg_of='o' ;; -l* | -L* | -pthread) case "$arg" in -pthread) arg='-lpthread' ;; esac case "$flavor" in gdc) func_add_word_to_options "$arg" ;; ldc) func_add_word_to_options '-L'; func_add_word_to_options "$arg" ;; dmd) func_add_word_to_options "-L=$arg" ;; esac ;; -Wl,*) if test "$flavor" = gdc; then func_add_word_to_options "$arg" else option=`echo "$arg" | sed -e 's/^-Wl,//'` case "$flavor" in ldc) func_add_word_to_options '-L'; func_add_word_to_options "$option" ;; dmd) func_add_word_to_options "-L=$option" ;; esac fi ;; -*) echo "dcomp: Unsupported option: $arg" 1>&2 exit 1 ;; *) # dmd rejects shared library file names such as libfoo.so.1.3: # "Error: unrecognized file extension 3" if test "$flavor" = dmd \ && case `basename "$arg"` in lib*.so.*) true ;; *) false ;; esac; then func_add_word_to_options "-L=$arg" else func_add_word_to_options "$arg" fi ;; esac else case "$next_is_arg_of" in o) case "$flavor" in gdc) func_add_word_to_options '-o'; func_add_word_to_options "$arg" ;; *) func_add_word_to_options "-of=$arg" ;; esac ;; esac next_is_arg_of= fi done if test -n "$next_is_arg_of"; then echo "dcomp: missing argument to option -$next_is_arg_of" 1>&2 exit 1 fi # Execute the command. test -z "$D_VERBOSE" || echo "@DC@ @DFLAGS@ $options_for_print" 1>&2 eval "@DC@ @DFLAGS@ $options_for_eval" exit $? ============================ modules/dcomp-script ============================ Description: Support for compiling D programs. Files: build-aux/dcomp.sh.in m4/dcomp.m4 Depends-on: configure.ac: AC_REQUIRE([gt_DCOMP]) AC_CONFIG_FILES([dcomp.sh:build-aux/dcomp.sh.in]) Makefile.am: License: GPLed build tool Maintainer: all
