Collectives™ on Stack Overflow

Find centralized, trusted content and collaborate around the technologies you use most.

Teams

Q&A for work

Connect and share knowledge within a single location that is structured and easy to search.

In a configure file (#!/bin/sh/) generated by autoconf, there is a paragraph inside like the following:

if ac_fn_cxx_try_compile "$LINENO"; then :
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    succeeded=yes
    found_system=yes
And when I execute ./configure it tells me "syntax error near unexpected token `fi'" at that line. It is not the end of the file.
                If you have nothing in else you get an error. Either delete else or put a : between else and fi. and get rid of the : after then.
– David C. Rankin
                Sep 19, 2014 at 6:35
                You bet, I get caught by something simple all the time. If it solved the problem, you can select the Answer as correct :)
– David C. Rankin
                Sep 19, 2014 at 6:41
if ac_fn_cxx_try_compile "$LINENO"; then
    $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 
    $as_echo "yes" >&6;
    succeeded=yes
    found_system=yes
    ##  look nothing here !!
    ##  at least put a ':'
    ##  or delete else altogether
I ran into this error when compiling libtorrent with minGW.
The problem was a m4 macro saved as a DOS file. Converting "ax_boost_base.m4" to linux file endings did the trick.
I am almost sure I have misconfigured GIT on my windows: It converts all files to DOS which is no good idea.
                Thank you so much.  You and @cbear1985 just saved me a lot of time; I was trying to build libusb-compat in MSYS2, and I have enabled autocrlf in my git configuration, so those files had CRLF line endings when they got checked out during the build process.
– David Grayson
                Dec 24, 2015 at 18:54
        
Thanks for contributing an answer to Stack Overflow!
Please be sure to answer the question. Provide details and share your research!
But avoid …
Asking for help, clarification, or responding to other answers.
Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.