Re: Emacs master build failing on RHEL 6.8 [image.c]

[Paul Eggert]

On 6/4/19 4:49 AM, Kaushal Modi wrote:
> /usr/bin/ld: warning: libgmp.so.3, needed by
> /cad/adi/apps/gnu/linux/x86_64/6/lib/libhogweed.so.2, may conflict with
> libgmp.so.10

This looks like some other glitch in your build process, something you 
should fix but unrelated to the GifErrorString problem.

> image.o: In function `gif_load':
> image.c:(.text+0xa76b): undefined reference to `GifErrorString'
> image.c:(.text+0xa7d8): undefined reference to `GifErrorString'
> image.c:(.text+0xaefe): undefined reference to `GifErrorString'
> collect2: error: ld returned 1 exit status

It looks like your GIFLIB implementation does not match its .h files. 
image.c calls GifErrorString only if HAVE_GIFERRORSTRING, which is true 
only if (5 < GIFLIB_MAJOR + (1 <= GIFLIB_MINOR)). So my guess is that 
your GIFLIB .h files are claiming to be release 5.1 or later, but the 
implementation predates 5.1. Please look into that. The situation is 
somewhat tricky as some GIFLIB .h files apparently define incorrect 
values for GIFLIB_MINOR.

I don't see any recent changes to image.c that would explain your problem.