build: remove use of handcrafted m4 in configuring scripts

Now that library/ is fully gone, we don't need this anymore.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

meson.build

@@ -28,7 +28,6 @@ LIBMAKEPKGDIR = join_paths(PREFIX, DATAROOTDIR, 'makepkg')
 PKGDATADIR = join_paths(PREFIX, DATAROOTDIR, meson.project_name())
 
 PYTHON = import('python').find_installation('python3')
-M4 = find_program('m4')
 SED = find_program('sed')
 DU = find_program('du')
 LDCONFIG = get_option('ldconfig')
@@ -250,7 +249,6 @@ carch = chost.split('-')[0]
 # largely identical, but which distinguishes between quoting needs.
 substs = configuration_data()
 substs.set('SED', SED.path())
-substs.set('M4', M4.path())
 substs.set('CARCH', carch)
 substs.set('CHOST', chost)
 substs.set('PKGEXT', get_option('pkg-ext'))

scripts/Makefile.am

@@ -189,7 +189,7 @@ edit = sed \
 ## wrong file by accident.
 $(OURSCRIPTS): %: %.sh.in wrapper.sh.in $(LIBMAKEPKG_IN) Makefile
 	$(AM_V_at)$(RM) $@
-	$(AM_V_GEN)test -f $(srcdir)/$@.sh.in && m4 -P -I $(srcdir) $(srcdir)/$@.sh.in | $(edit) >$@
+	$(AM_V_GEN)test -f $(srcdir)/$@.sh.in && $(edit) $(srcdir)/$@.sh.in >$@
 	$(AM_V_at)chmod +x,a-w $@
 	@$(BASH_SHELL) -O extglob -n $@
 

scripts/meson.build

@@ -14,18 +14,12 @@ SCRIPT_EDITOR = find_program(configure_file(
   output : 'edit-script.sh',
   configuration : substs))
 
-m4_edit = generator(
-  M4,
-  arguments : ['-P', '-I', meson.current_source_dir(), '@INPUT@'],
-  output : '@PLAINNAME@',
-  capture : true)
-
 foreach script : scripts
   script_shortname = script.split('.')[0]
 
   custom_target(
     script,
-    input : m4_edit.process(script),
+    input : script,
     command : [ SCRIPT_EDITOR, '@INPUT@', '@OUTPUT@', '0755'],
     output : script_shortname,
     install : true,
@@ -40,7 +34,7 @@ foreach script : wrapped_scripts
   # the build directory.
   internal_script = custom_target(
     script,
-    input : m4_edit.process(script),
+    input : script,
     command : [ SCRIPT_EDITOR, '@INPUT@', '@OUTPUT@', '0755'],
     output : script,
     build_by_default : true)