I am building on netbsd-6 i386 with gcc 4.5.3. I got an error about SIGPIPE being undefined. The man page says that signal.h is required to be included, and posix agrees:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/signal.html I couldn't find an include of signal.h; the following patch resolves the error. Index: port/cpl_port.h =================================================================== --- port/cpl_port.h (revision 31282) +++ port/cpl_port.h (working copy) @@ -125,6 +125,7 @@ /* Standard include files. */ /* ==================================================================== */ +#include <signal.h> #include <stdio.h> #include <stdlib.h> #include <math.h> gmake[1]: Entering directory '/usr/home/gdt/SOFTWARE/GEO/gdal/apps' /bin/ksh /home/gdt/SOFTWARE/GEO/gdal/libtool --mode=compile --tag=CC gcc -I/home/gdt/SOFTWARE/GEO/gdal/port -I/home/gdt/SOFTWARE/GEO/gdal/gcore -I/home/gdt/SOFTWARE/GEO/gdal/alg -I/home/gdt/SOFTWARE/GEO/gdal/ogr -I/home/gdt/SOFTWARE/GEO/gdal/ogr/ogrsf_frmts -I/home/gdt/SOFTWARE/GEO/gdal/gnm -I/home/gdt/SOFTWARE/GEO/gdal/apps -g -O2 -Wall -Wdeclaration-after-statement -Wextra -Winit-self -Wunused-parameter -Wmissing-prototypes -Wmissing-declarations -Wformat -Werror=format-security -Wno-format-nonliteral -Werror=vla -Wdeclaration-after-statement -Wno-clobbered -I/home/gdt/SOFTWARE/GEO/gdal/frmts/vrt -DOGR_ENABLED -I/usr/pkg/include -I/home/gdt/SOFTWARE/GEO/gdal/port -I/usr/pkg/include -DGDAL_COMPILATION -I/usr/pkg/include/json-c -I/home/gdt/SOFTWARE/GEO/gdal/ogr/ogrsf_frmts/geojson -DHAVE_GEOS=1 -I/usr/pkg/include -c -o gdalserver.lo gdalserver.c libtool: compile: gcc -I/home/gdt/SOFTWARE/GEO/gdal/port -I/home/gdt/SOFTWARE/GEO/gdal/gcore -I/home/gdt/SOFTWARE/GEO/gdal/alg -I/home/gdt/SOFTWARE/GEO/gdal/ogr -I/home/gdt/SOFTWARE/GEO/gdal/ogr/ogrsf_frmts -I/home/gdt/SOFTWARE/GEO/gdal/gnm -I/home/gdt/SOFTWARE/GEO/gdal/apps -g -O2 -Wall -Wdeclaration-after-statement -Wextra -Winit-self -Wunused-parameter -Wmissing-prototypes -Wmissing-declarations -Wformat -Werror=format-security -Wno-format-nonliteral -Werror=vla -Wdeclaration-after-statement -Wno-clobbered -I/home/gdt/SOFTWARE/GEO/gdal/frmts/vrt -DOGR_ENABLED -I/usr/pkg/include -I/home/gdt/SOFTWARE/GEO/gdal/port -I/usr/pkg/include -DGDAL_COMPILATION -I/usr/pkg/include/json-c -I/home/gdt/SOFTWARE/GEO/gdal/ogr/ogrsf_frmts/geojson -DHAVE_GEOS=1 -I/usr/pkg/include -c gdalserver.c -fPIC -DPIC -o .libs/gdalserver.o gdalserver.c: In function 'RunServer': gdalserver.c:428:9: warning: implicit declaration of function 'signal' gdalserver.c:428:16: error: 'SIGPIPE' undeclared (first use in this function) gdalserver.c:428:16: note: each undeclared identifier is reported only once for each function it appears in gdalserver.c:428:25: error: 'SIG_IGN' undeclared (first use in this function) ../GDALmake.opt:650: recipe for target 'gdalserver.lo' failed gmake[1]: *** [gdalserver.lo] Error 1 gmake[1]: Leaving directory '/usr/home/gdt/SOFTWARE/GEO/gdal/apps' GNUmakefile:93: recipe for target 'apps-target' failed gmake: *** [apps-target] Error 2
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