[gimp] build: "debug" component only known when DEBUG_SYMBOLS is defined.

[Jehan <jehanp src gnome org>]

commit 681c37d830aca78c11644c49a3db67d12c1c1acc
Author: Jehan <jehan girinstud io>
Date:   Fri May 14 16:46:05 2021 +0200

    build: "debug" component only known when DEBUG_SYMBOLS is defined.

 build/windows/installer/files.isi | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/build/windows/installer/files.isi b/build/windows/installer/files.isi
index 71706cda06..7ae8c5e5ed 100644
--- a/build/windows/installer/files.isi
+++ b/build/windows/installer/files.isi
@@ -18,7 +18,9 @@ Source: "{#GIMP_DIR}\{#DIR}\*.exe"; DestDir: "{app}"; Excludes: "\lib\gimp\{#DIR
 Source: "{#GIMP_DIR}\{#DIR}\*.debug"; DestDir: "{app}"; Components: gimp{#PLATFORM} and debug; Flags: 
recursesubdirs restartreplace uninsrestartdelete ignoreversion
 #endif
 Source: "{#GIMP_DIR}\{#DIR}\lib\gimp\{#DIR_VER}\extensions\*.*"; Excludes: "*.debug"; DestDir: 
"{app}\lib\gimp\{#DIR_VER}\extensions"; Flags: recursesubdirs restartreplace ignoreversion uninsrestartdelete
+#ifdef DEBUG_SYMBOLS
 Source: "{#GIMP_DIR}\{#DIR}\lib\gimp\{#DIR_VER}\extensions\*.debug"; DestDir: 
"{app}\lib\gimp\{#DIR_VER}\extensions"; Components: debug; Flags: recursesubdirs restartreplace ignoreversion 
uninsrestartdelete
+#endif
 
 Source: "{#GIMP_DIR}\{#DIR}\lib\gimp\{#DIR_VER}\plug-ins\file-ps\file-ps.exe"; DestDir: 
"{app}\lib\gimp\{#DIR_VER}\plug-ins\file-ps"; Components: gs and gimp{#PLATFORM}; Flags: restartreplace 
ignoreversion uninsrestartdelete