40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
If you want to develop Ada programs and libraries on Debian, please
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read the Debian Policy for Ada:
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http://people.debian.org/~lbrenta/debian-ada-policy.html
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The default Ada compiler is and always will be the package `gnat'.
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Debian contains many programs and libraries compiled with it, which
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are all ABI-compatible.
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Starting with gnat-4.2, Debian provides both zero-cost and
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setjump/longjump versions of the run-time library. The zero-cost
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exception handling mechanism is the default as it provides the best
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performance. The setjump/longjump exception handling mechanism is new
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and only provided as a static library. It is necessary to use this
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exception handling mechanism in distributed (annex E) programs. If
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you wish to use the new sjlj library:
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1) call gnatmake with --RTS=sjlj
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2) call gnatbind with -static
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Do NOT link your programs with libgnat-4.2.so, because it uses the ZCX
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mechanism.
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This package also includes small tools covering specific needs.
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* When linking objects compiled from both Ada and C sources, you need
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to use compatible versions of the Ada and C compilers. The
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required major version is the output of
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# gnatmake --version | sed 's/.* \([0-9]\+\).*/\1/;q')
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Then compile C sources with gcc-MAJOR instead of gcc.
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For GPR projects, this should be sufficient:
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# gprconfig --batch --config=Ada --config=C,,,,MAJOR
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The same advice applies to C++, Fortran and assembly.
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* When packaging Ada sources for Debian, you may want to read the
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/usr/share/ada/debian_packaging.mk Makefile snippet from the gnat
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package.
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