On Wed, Feb 12, 2020 at 12:44 AM Nitish Saboo <nitish.sabo...@gmail.com> wrote:
>
> I have A CGO project.While compiling the project I am getting the following
> error:
>
> In file included from
> lib/../deps/syslog/syslog-ng-3.25.1/lib/logmsg/logmsg.h:31:0,
> [07:38:51][shellscript] from lib/syslog-node.c:9:
> [07:38:51][shellscript]
> lib/../deps/syslog/syslog-ng-3.25.1/install/include/syslog-ng/serialize.h: In
> function 'serialize_read_uint32_array':
> [07:38:51][shellscript]
> lib/../deps/syslog/syslog-ng-3.25.1/install/include/syslog-ng/serialize.h:120:7:
> error: 'for' loop initial declarations are only allowed in C99 mode
> [07:38:51][shellscript] for (int i = 0; i < elements; i++)
> [07:38:51][shellscript] ^
> [07:38:51][shellscript]
> lib/../deps/syslog/syslog-ng-3.25.1/install/include/syslog-ng/serialize.h:120:7:
> note: use option -std=c99 or -std=gnu99 to compile your code
> [07:38:51][shellscript]
> lib/../deps/syslog/syslog-ng-3.25.1/install/include/syslog-ng/serialize.h: In
> function 'serialize_read_uint16_array':
> [07:38:51][shellscript]
> lib/../deps/syslog/syslog-ng-3.25.1/install/include/syslog-ng/serialize.h:134:7:
> error: 'for' loop initial declarations are only allowed in C99 mode
> [07:38:51][shellscript] for (int i = 0; i < elements; i++)
>
>
> I am passing these flags for compilation of CGO project:
>
> //#cgo CFLAGS: -I${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/
> //#cgo CFLAGS: -I${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/build
> //#cgo CFLAGS: -I${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/install/include/
> //#cgo CFLAGS:
> -I${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/install/include/syslog-ng
> //#cgo LDFLAGS: -L${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/install/lib
> -lsyslog-ng
> //#cgo LDFLAGS:
> -L${SRCDIR}/../deps/syslog/syslog-ng-3.6.2/install/lib/syslog-ng -ldbparser
> //#cgo pkg-config: eventlog
> //#cgo CFLAGS: -I/usr/include/glib-2.0
> //#cgo CFLAGS: -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>
> Currently the C code is getting compiled against gcc -std=gnu99.Looks like I
> have to compile the C code against gcc -std=C99.
> How can I pass this flag from Go code so that the C code gets compiled
> against -std=C99.
Try
//#cgo CFLAGS: -std=c99
Ian
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