[tlbuild] build failure: usage of __attribute__ ((format(printf, 1, 0))) in texk/web2c/luatexdir/luafontloader/src/ffdummies.c

[Vladimir Volovich]

Hi!

i've got a build failure on Solaris (using the Sun Studio compiler):

source='luatexdir/luafontloader/src/ffdummies.c' object='libff_a-ffdummies.o' libtool=no \
        DEPDIR=.deps depmode=none /opt/csw/bin/bash ../../../texk/web2c/../../build-aux/depcomp \
        cc -DHAVE_CONFIG_H -I. -I../../../texk/web2c -I/opt/home/vvv/src/texlive/source/Work/texk -I/opt/home/vvv/src/texlive/source/texk -DFONTFORGE_CONFIG_NO_WINDOWING_UI=1 -DLUA_FF_LIB=1 -D_NO_PYTHON=1 -DX_DISPLAY_MISSING=1 -DNODYNAMIC=1 -D_NO_FREETYPE=1 -D_NO_LIBUNINAMESLIST=1 -UHAVE_LIBINTL_H -I../../../texk/web2c/luatexdir/lua51 -I../../../texk/web2c/luatexdir/luafontloader/fontforge/inc -I../../../texk/web2c/luatexdir/luafontloader/fontforge/fontforge   -xarch=v8 -O -c -o libff_a-ffdummies.o `test -f 'luatexdir/luafontloader/src/ffdummies.c' || echo '../../../texk/web2c/'`luatexdir/luafontloader/src/ffdummies.c
"../../../texk/web2c/luatexdir/luafontloader/src/ffdummies.c", line 51: syntax error before or at: (
"../../../texk/web2c/luatexdir/luafontloader/src/ffdummies.c", line 51: warning: old-style declaration or incorrect type for: __attribute__
"../../../texk/web2c/luatexdir/luafontloader/src/ffdummies.c", line 71: cannot recover from previous errors
cc: acomp failed for ../../../texk/web2c/luatexdir/luafontloader/src/ffdummies.c
gmake[4]: *** [libff_a-ffdummies.o] Error 2

after i've commented out the lines with __attribute__, i was
able to compile the file.

it seems that last year's version of this file did not use
__attribute__, and worked fine. maybe it could be surrounded with
#ifdef GNUC ?

Best,
v.