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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: ld: library not found for -lcrt1.10.5.o
Date: Sun, 17 Mar 2013 20:56:58 +0000
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Date: 2013-03-17T20:56:58+00:00
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claragranell@gmail.com writes:

> Hello everybody. I write here because I didn't find a way to solve the
> problem I had in any other place.
> I have MAC OSX 10.7.4 and I am trying to install GNAT 2012 (I would be
> happy with 2010 or 2011, but I have the same problems with them). I
> install GNAT using the doinstall script, and it works fine
> (supposedly), but then I try to compile any test program and I get:
>
>>> gnatmake test.adb
> gnatbind -x test.ali
> gnatlink test.ali
> ld: library not found for -lcrt1.10.5.o
> collect2: ld returned 1 exit status
> gnatlink: error when calling /usr/local/gnat/bin/gcc
> gnatmake: *** link failed.
>
> Anyone knows what is happening? Any help will be appreciated. Thanks
> in advance!

On 10.8.3/Xcode 4.6, crt1.10.{5,6}.0 are in /usr/lib. Maybe you need to
install Xcode? Where was crt1.10.5.0 on your system?

I found out the library search path by

   gnatmake hello_world.adb -largs -Wl,-v

where the last part asks for -v to be passed to the actual linker:

   $ gnatmake hello_world -largs -Wl,-v
   gnatbind -x hello_world.ali
   gnatlink hello_world.ali -Wl,-v
   collect2 version 4.7.0

   /usr/bin/ld -dynamic -arch x86_64 -macosx_version_min 10.8.3
   [...]
   -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem
   @(#)PROGRAM:ld  PROJECT:ld64-136
   configured to support archs: armv6 armv7 armv7s i386 x86_64
   Library search paths:
           ./
           /opt/gcc-4.7.0/lib/gcc/x86_64-apple-darwin11/4.7.0/adalib/
           /opt/gcc-4.7.0/lib/gcc/x86_64-apple-darwin11/4.7.0
           /opt/gcc-4.7.0/lib
           /usr/lib                          <-------------
           /usr/local/lib
   Framework search paths:
           /Library/Frameworks/
           /System/Library/Frameworks/