Detecing awk...
Trying: echo "a.c b.c c.c" | tr ' ' \\n |  awk ' { ORS = " " } /\.c$/   { gsub(".c$",   ".o", $0); print $0; }' 2>/dev/null
Result: 'a.o b.o c.o '
checking awk... awk
detecting OS... OSX
checking build system type... CC/CXX not set (skipping)
executing gcc -dumpmachine
  returned powerpc-apple-darwin8
  exit code 0
checking build system type... powerpc-apple-darwin8
checking host system type... CC/CXX not set (skipping)
executing gcc -dumpmachine
  returned powerpc-apple-darwin8
  exit code 0
checking host system type... powerpc-apple-darwin8
checking universal build... no
checking build cc... gcc
checking host cc... gcc
checking build c++... CC/CXX not set (skipping)
executing g++ -dumpmachine
  returned powerpc-apple-darwin8
  exit code 0
checking build c++... g++
checking host c++... CC/CXX not set (skipping)
executing g++ -dumpmachine
  returned powerpc-apple-darwin8
  exit code 0
checking host c++... g++
checking strip... disabled
checking builtin depend... yes
checking makedepend... disabled
executing g++  tmp.64bit.cpp -o tmp.64bit -DTESTING 2>&1
  returned In file included from src/stdafx.h:16,
                 from tmp.64bit.cpp:2:
src/os/macosx/osx_stdafx.h:36:3: error: #error "Compiling 64 bits without _SQ64 set! (or vice versa)"
tmp.64bit.cpp:3: error: size of array '__ct_assert__' is negative
  exit code 1
detecting cpu-type... 32 bits
checking static... no
checking unicode... no
using debug level... no
using desync debug level... no
using link time optimization... no
checking OSX sysroot... no (use system default)
checking Allegro... OSX, skipping
checking SDL... OSX, skipping
checking COCOA... found
checking whether to enable the Quartz window subdriver... yes
executing g++    -mmacosx-version-min=10.3 tmp.osx.mm -framework Cocoa -o tmp.osx 2>&1
  exit code 0
checking Quickdraw window subdriver... found
checking GDI video driver... not Windows, skipping
checking dedicated... not selected
checking network... found
checking ai... found
checking translator... no
checking assert... enabled
detecting zlib
  trying /usr/include/zlib.h... found
checking zlib... found
executing pkg-config liblzma --modversion
  returned 
  exit code 127
checking liblzma... not found
WARNING: lzma was not detected or disabled
WARNING: OpenTTD doesn't require lzma, but it does mean that many features
WARNING: (like loading most savegames/scenarios and joining most servers)
WARNING: will be disabled.
 If you want to compile without lzma use --without-lzma as parameter