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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Any clues here welcomed. I’m trying to build a debug version of Firefox from the 35.0.1 release tarball. Compiler is VS2013 although both VS2012 and VS2015 are installed. OS is Windows 7x64. Moztools VERSION is 1.11.0<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Once the msys shell is opened using the ‘sart-shell-msvc-2013.bat’ file, the correct compiler shows with cl -?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Run ‘mach build’ fails very early on with the error(s) shown below. Why clang?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What am I missing? TIA. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>------------------------config.log snipped-------------------------<o:p></o:p></p><p class=MsoNormal>This file contains any messages produced by compilers while<o:p></o:p></p><p class=MsoNormal>running configure, to aid debugging if configure makes a mistake.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>configure:1194: checking host system type<o:p></o:p></p><p class=MsoNormal>configure:1215: checking target system type<o:p></o:p></p><p class=MsoNormal>configure:1233: checking build system type<o:p></o:p></p><p class=MsoNormal>configure:1309: checking for gawk<o:p></o:p></p><p class=MsoNormal>configure:1394: checking for python2.7<o:p></o:p></p><p class=MsoNormal>configure:1504: checking Python environment is Mozilla virtualenv<o:p></o:p></p><p class=MsoNormal>configure:1725: checking for perl5<o:p></o:p></p><p class=MsoNormal>configure:1725: checking for perl<o:p></o:p></p><p class=MsoNormal>configure:3204: checking for gcc<o:p></o:p></p><p class=MsoNormal>configure:3317: checking whether the C compiler (clang ) works<o:p></o:p></p><p class=MsoNormal>configure:3333: clang -o conftest conftest.c 1>&5<o:p></o:p></p><p class=MsoNormal>r:/mozilla/FF3501/configure: line 3332: clang: command not found<o:p></o:p></p><p class=MsoNormal>configure: failed program was:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>#line 3328 "configure"<o:p></o:p></p><p class=MsoNormal>#include "confdefs.h"<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>main(){return(0);}<o:p></o:p></p><p class=MsoNormal>configure: error: installation or configuration problem: C compiler cannot create executables.<o:p></o:p></p></div></body></html>