I forgot to mention one more thing.. I also set CPPFLAGS="-fgnu89-inline"
and CFLAGS="-I/home/kmodi/usr_local/6/include" in the ./configure line.

Here's more info from the config.log

configure:14946: checking gif_lib.h usability
configure:14946: gcc -std=gnu99 -c  -I/home/kmodi/usr_local/6/include
 -pthread -I/home/kmodi/usr_local/6/include/libpng12
-I/home/kmodi/usr_local/6/include/cairo
-I/home/kmodi/usr_local/6/include/glib-2.0
-I/home/kmodi/usr_local/6/lib/glib-2.0/include -I/usr/include/freetype2
-I/home/kmodi/usr_local/6/include/libpng12
-I/cad/WORK/apps/gnu/linux/x86_64/6/include/pixman-1
-I/usr/include/librsvg-2 -I/usr/include/gdk-pixbuf-2.0
-I/usr/include/freetype2     -fgnu89-inline conftest.c >&5
configure:14946: $? = 0
configure:14946: result: yes
configure:14946: checking gif_lib.h presence
configure:14946: gcc -std=gnu99 -E    -fgnu89-inline conftest.c
configure:14946: $? = 0
configure:14946: result: yes
configure:14946: checking for gif_lib.h
configure:14946: result: yes
configure:14950: checking for GifMakeMapObject in -lgif
configure:14975: gcc -std=gnu99 -o conftest
 -I/home/kmodi/usr_local/6/include  -pthread
-I/home/kmodi/usr_local/6/include/libpng12
-I/home/kmodi/usr_local/6/include/cairo
-I/home/kmodi/usr_local/6/include/glib-2.0
-I/home/kmodi/usr_local/6/lib/glib-2.0/include -I/usr/include/freetype2
-I/home/kmodi/usr_local/6/include/libpng12
-I/cad/WORK/apps/gnu/linux/x86_64/6/include/pixman-1
-I/usr/include/librsvg-2 -I/usr/include/gdk-pixbuf-2.0
-I/usr/include/freetype2     -fgnu89-inline   conftest.c -lgif  -lX11   >&5
/usr/bin/ld: cannot find -lgif


On Thu, Sep 10, 2015 at 12:58 AM Kaushal Modi <kaushal.modi@gmail.com>
wrote:

> Hi,
>
> The OS at my work recently upgraded from RHEL 5 to RHEL 6 and I needed to
> rebuild my emacs. I am building using the latest version from the git
> master branch.
>
> The builds on RHEL 5 were smooth.
>
> But on RHEL 6, I need to pass the --with-gif=no option.
>
> I used "/home/kmodi/usr_local/6" as prefix when installing giflib.
>
> Here are the things I ensured for a clean build:
> - Use "make bootstrap" (just the ./configure call in there is modified
> with my custom --prefix and now with this --with-gif=no)
> - Ensure that LD_LIBRARY_PATH, PKG_CONFIG_PATH and INCLUDE_PATH are set
> correctly containing the paths to where I have the giflib installed (in the
> correct order, leftmost).
>   - LD_LIBRARY_PATH contained ""/home/kmodi/usr_local/6/lib"
>   - PKG_CONFIG_PATH contained ""/home/kmodi/usr_local/6/lib/pkgconfig"
>   - INCLUDE_PATH contained ""/home/kmodi/usr_local/6/include"
> - Installed giflib 5.1.1 (to make this work, I also installed/uninstalled
> older versions of this library: giflib 4.1.3, giflib 4.1.4). But configure
> is simply not able to find this lib!
> - Also tried setting this env var but that did not help
> setenv LIBGIF "-L/home/kmodi/usr_local/6/lib -lgif "
>
> This is the failure message I get:
>
> checking for TIFFGetVersion in -ltiff... yes
> checking gif_lib.h usability... yes
> checking gif_lib.h presence... yes
> checking for gif_lib.h... yes
> checking for GifMakeMapObject in -lgif... no
> checking for EGifPutExtensionLast in -lgif... no
> checking for EGifPutExtensionLast in -lungif... no
> configure: error: The following required libraries were not found:
>      libgif/libungif
>
> But when I grep for GifMakeMapObject in the include/ dir, I see that it's
> there in gif_lib.h:
>
> km²~/usr_local/:6/include> grep "GifMakeMapObject" gif_lib.h
> 239:extern ColorMapObject *GifMakeMapObject(int ColorCount,
>
> FWIW, when I build emacs with the --with-gif=no option, I get the below
> value when I do C-h v system-configuration-features:
>
> "XPM JPEG TIFF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY ACL
> LIBSELINUX GNUTLS LIBXML2 FREETYPE LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK2
> X11"
>
> Can someone please help with what I am missing here? Has anyone faced this
> problem and successfully resolved it?
>
> Thanks.
>