autoconf: Compilers and Preprocessors

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1 5.10 Compilers and Preprocessors
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1 All the tests for compilers (`AC_PROG_CC', `AC_PROG_CXX',
1 `AC_PROG_F77') define the output variable `EXEEXT' based on the output
1 of the compiler, typically to the empty string if Posix and `.exe' if a
1 DOS variant.
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1    They also define the output variable `OBJEXT' based on the output of
1 the compiler, after `.c' files have been excluded, typically to `o' if
1 Posix, `obj' if a DOS variant.
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1    If the compiler being used does not produce executables, the tests
1 fail.  If the executables can't be run, and cross-compilation is not
1 enabled, they fail too.  ⇒Manual Configuration, for more on
1 support for cross compiling.
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· Specific Compiler Characteristics  Some portability issues
· Generic Compiler Characteristics  Language independent tests and features
· C Compiler                  Checking its characteristics
· C++ Compiler                Likewise
· Objective C Compiler        Likewise
· Objective C++ Compiler      Likewise
· Erlang Compiler and Interpreter  Likewise
· Fortran Compiler            Likewise
· Go Compiler                 Likewise
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