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Q: When I try compiling a program, GCC aborts saying "Installation problem, cannot exec `cpp': No such file". Huh?
COMPILER_PATH environment variable or what the
COMPILER_PATH line in the DJGPP.ENV file says, and make sure they point to the directory where DJGPP programs reside. Also check that the named directory has all the
required programs: cpp.exe, cc1.exe, cc1plus.exe, cxxfilt.exe, gasp.exe, as.exe, ld.exe, and (for
Objective-C) cc1obj.exe. A typical case is when people fail to install the Binutils package and GCC cannot
find as.exe (the assembler) and ld.exe (the linker). You can use the -v switch to GCC to see what programs it invokes and which one of them causes the fatal
error. Beginning with version 2.8.0 of GCC, the place where the pre-processor, cpp.exe, and the C and C++ compilers, cc1.exe and cc1plus.exe, are installed, has changed: they are no more in the same directory as gcc.exe itself. If you are using GCC version 2.8.0 or later, and the compiler cannot find cpp.exe, read the installation instructions carefully: the file problems.txt explains how to change the settings on DJGPP.ENV so that GCC will find the pre-processor.
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