[gimp] build, gitlab-ci: generated files should be in the build dir.

[Jehan <jehanp src gnome org>]

commit 0e4263d80063accc84b23f9a02c35bc330dfdf36
Author: Jehan <jehan girinstud io>
Date:   Fri Jun 18 20:40:04 2021 +0200

    build, gitlab-ci: generated files should be in the build dir.
    
    Also update the CI script to copy the generated language files before
    creating the installer so that the gimp3264.iss script finds them.

 .gitlab-ci.yml                                  | 4 ++--
 build/windows/gitlab-ci/installer-gimp-msys2.sh | 3 +++
 build/windows/installer/lang/Makefile.am        | 4 ++--
 3 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 186703ef99..8e9ba15818 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -301,7 +301,7 @@ gimp-win64-native:
     expire_in: 1 day
     paths:
     - _install-w64
-    - build/windows/installer/lang/
+    - _build-w64/build/windows/installer/lang/
   cache:
     paths:
     - _ccache/
@@ -332,7 +332,7 @@ packaging-win64-native:
     expire_in: 1 day
     paths:
     - gimp-w64
-    - build/windows/installer/lang/
+    - _build-w64/build/windows/installer/lang/
   needs: ["gimp-win64-native"]
 
 ## WINDOWS 32-bit CI (native MSYS2) ##
diff --git a/build/windows/gitlab-ci/installer-gimp-msys2.sh b/build/windows/gitlab-ci/installer-gimp-msys2.sh
index cce0c6fd09..b69bff73ac 100644
--- a/build/windows/gitlab-ci/installer-gimp-msys2.sh
+++ b/build/windows/gitlab-ci/installer-gimp-msys2.sh
@@ -27,6 +27,9 @@ wget https://raw.githubusercontent.com/jrsoftware/issrc/main/Files/Languages/Uno
 wget https://raw.githubusercontent.com/jrsoftware/issrc/main/Files/Languages/Unofficial/Vietnamese.isl
 cd -
 
+# Copy generated language files into the source directory.
+cp _build-w64/build/windows/installer/lang/*isl build/windows/installer/lang
+
 # Construct now the installer.
 MAJOR_VERSION=`grep 'm4_define(\[gimp_major_version' configure.ac |sed 
's/m4_define(\[gimp_major_version.*\[\([0-9]*\)\].*/\1/'`
 MINOR_VERSION=`grep 'm4_define(\[gimp_minor_version' configure.ac |sed 
's/m4_define(\[gimp_minor_version.*\[\([0-9]*\)\].*/\1/'`
diff --git a/build/windows/installer/lang/Makefile.am b/build/windows/installer/lang/Makefile.am
index 430be93d6f..dcf5c792eb 100644
--- a/build/windows/installer/lang/Makefile.am
+++ b/build/windows/installer/lang/Makefile.am
@@ -51,7 +51,7 @@ stamp-isl: setup.isl Makefile.am
                code=`echo $$lang | cut -d: -f1`;                                       \
                prefix=`echo $$lang | cut -d: -f2 | sed 's/[][]/\\\\\\0/g'`;            \
                encoding=`echo $$lang | cut -d: -f3`;                                   \
-               isl="$(srcdir)/$$code.setup.isl";                                       \
+               isl="$(builddir)/$$code.setup.isl";                                     \
                echo "  GEN      $$isl";                                                \
                sed '/^\w\+'"$$prefix"'=/{s/\(.\)'"$$prefix"'/\1/;n};/^\w.*=/d' $< |    \
                iconv -c -f UTF-8 -t $$encoding > "$$isl";                              \
@@ -67,7 +67,7 @@ clean-local:
        @                                               \
        for lang in $(languages); do                    \
                code=`echo $$lang | cut -d: -f1`;       \
-               isl="$(srcdir)/$$code.setup.isl";       \
+               isl="$(builddir)/$$code.setup.isl";     \
                echo "  RM       $$isl";                \
                rm -f "$$isl";                          \
        done