Wireshark · Ethereal-dev: Re: [Ethereal-dev] -ansi vs. configure question

[Guy Harris <guy@xxxxxxxxxxxx>]

On Jan 20, 2004, at 11:38 AM, Joerg Mayer wrote:

> So, back to my intended question: Is there a way to make configure use 
> certain
> compiler flags *during* its checks?

Put them in CFLAGS before the checks are run.  That worked when I tried 
it here - I added "-ansi" to the "--with-extra-gcc-checks" list, and 
ran configure with that option after rebuilding with the version of 
autoconf 2.57 that comes with Mac OS X 10.3.2, and the tests used 
"-ansi" when compiling.

I guess -ansi doesn't disable its use to a sufficient extent on 10.3.2, 
because the test compile succeeded:

configure:25574: checking for snprintf
configure:25624: gcc -o conftest -DINET6 -no-cpp-precomp 
-D_U_="__attribute__((unused))" -Wall -W -Wcast-qual -Wcast-align 
-Wbad-function-cast -pedantic -Wstrict-prototypes -ansi -g -O2 
-I/usr/local/include -I/usr/local/include/gtk-1.2 
-I/usr/local/include/glib-1.2 -I/usr/local/lib/glib/include 
-I/usr/local/include -L/usr/local/lib -L/usr/local/lib conftest.c -lz 
>&5
configure:25643: warning: function declaration isn't a prototype
configure:25650: warning: function declaration isn't a prototype
configure:25658: warning: function declaration isn't a prototype
configure:25627: $? = 0
configure:25630: test -s conftest
configure:25633: $? = 0
configure:25644: result: yes