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Add freetype linker flags for cairo to fix wasm build

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Not only the freetype headers, but also freetype linker
flags are needed when building using internal cairo.

Adjust accordingly. (The 'freetype' external already
uses the 'freetype_headers' one, so specifying only
'freetype' is enough.)

This fixes the following build error otherwise seen in
a wasm/Emscripten build after

    commit ea7166ec8b
    Date:   Fri Jul 24 18:01:51 2026 +0300

        vcl: Don’t link against freetype

        It is not used directly anymore.

:

    em++: warning: EXPORT_EXCEPTION_HANDLING_HELPERS is deprecated (getExceptionMessage is exported anyway when ASSERTIONS or EXCEPTION_STACK_TRACES is set, which are set by default at -O0. At -O1 or above, you can export it separately by -sEXPORTED_RUNTIME_METHODS=getExceptionMessage,decrementExceptionRefcount.). Please open a bug if you have a continuing need for this setting [-Wdeprecated]
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Outline_Transform
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Outline_Decompose
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Done_Face
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_New_Face
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Set_Transform
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Set_Char_Size
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_MM_Var
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Var_Design_Coordinates
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Done_MM_Var
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_MM_Var
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Var_Design_Coordinates
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Set_Var_Design_Coordinates
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Done_MM_Var
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Init_FreeType
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Color_Glyph_Paint
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Color_Glyph_Paint
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Color_Glyph_Layer
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Color_Glyph_Layer
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Load_Glyph
    wasm-ld: error: /home/michi/development/git/libreoffice-WORKTREE-wasm/workdir/UnpackedTarball/cairo/builddir/src/libcairo-lo.a(cairo-ft-font.c.o): undefined symbol: FT_Get_Color_Glyph_Layer
    wasm-ld: error: too many errors emitted, stopping now (use -error-limit=0 to see all errors)

Same also seen in the Tinderbox wasm builds:
https://ci.libreoffice.org/view/tb%20platform%20status/job/lo_daily_tb_linux_wasm/1547/console

Change-Id: Iea8725f9177417cdd3d6e410f693b9ac46d95e78
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/211510
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
This commit is contained in:
Michael Weghorn
2026-09-28 15:26:11 +02:00
parent 370e262391
commit 363953bde7
1 changed files with 1 additions and 1 deletions
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RepositoryExternal.mk
+1 -1
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@@ -1388,7 +1388,7 @@ endif
define gb_LinkTarget__use_cairo
$(call gb_LinkTarget_use_package,$(1),cairo)
$(call gb_LinkTarget_use_package,$(1),pixman)
$(call gb_LinkTarget_use_external,$(1),freetype_headers)
$(call gb_LinkTarget_use_external,$(1),freetype)
$(call gb_LinkTarget_set_include,$(1),\
-I$(gb_UnpackedTarball_workdir)/cairo \
-I$(gb_UnpackedTarball_workdir)/cairo/src \