gnucash master: Multiple changes pushed

[John Ralls]

On Jul 5, 2014, at 11:34 PM, Sumit Bhardwaj <bhardwajs at gmail.com> wrote:

> Sure, John. Here you go. Interestingly, I didn't find conftest.c in the directory tree.
> 
> 'tree | grep conftest.c' gave no output.
> 
> Thanks,
> Sumit
> 
> configure:25408: checking whether C++ compiler accepts -Wno-deprecated-register
> configure:25427: g++ -c -g -O2 -std=gnu++11 -Werror -Wno-deprecated-register  conftest.cpp >&5
> configure:25427: $? = 0
> configure:25435: result: yes
> configure:25449: checking whether C compiler accepts -Wno-non-literal-null-conversion
> configure:25468: gcc -c -g -O2 -Werror -Wno-non-literal-null-conversion  conftest.c >&5
> configure:25468: $? = 0
> configure:25476: result: yes
> configure:25484: checking what extra warning flags to pass to the C compiler
> configure:25547: gcc -c  -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations  -Wno-non-literal-null-conversion -Wno-unused -g -O2 -Werror -D_FORTIFY_SOURCE=2  conftest.c >&5
> configure:25547: $? = 0
> configure:25560: result:  -Werror -Wdeclaration-after-statement -Wno-pointer-sign -D_FORTIFY_SOURCE=2
> configure:25697: checking that generated files are newer than configure
> configure:25703: result: done
> configure:25835: creating ./config.status

Interesting. I suspect that AX_CHECK_COMPILE_FLAG isn't getting cc1 invoked, only cpp, because it passes in an effectively empty program. 

Try editing macros/m4_ax_check_compile_flag.m4 so that
  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
becomes
  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM(
	[[const char hw[] = "Hello, World\n";]],
        [[fputs (hw, stdout);]])]))])],

and see if that will get it to fail in configure. You'll need to re-run autogen.sh to pull the modified macro into configure.

Regards,
John Ralls