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Diffstat (limited to 'plugins/MirOTR/Libgpg-error/README')
| -rw-r--r-- | plugins/MirOTR/Libgpg-error/README | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/plugins/MirOTR/Libgpg-error/README b/plugins/MirOTR/Libgpg-error/README deleted file mode 100644 index c415983598..0000000000 --- a/plugins/MirOTR/Libgpg-error/README +++ /dev/null @@ -1,47 +0,0 @@ -Notes on the source code -======================== - -The mechanism to generate the system error codes is delicate and -fragile, but it's the best I could come up with that supports -cross-compilation and dynamic self-configuration. Here is how it -works: - -1. Generate list of supported system error codes. - -mkerrcodes1.awk generates a list of supported system error codes from -errnos.in. Each entry in the list is protected with #ifdef/#endif, -and contains a GPG_ERR_* marker. The list is stored in "_mkerrcodes.h". - -2. The HOST cpp is run on _mkerrcodes.h. This evaluates the known -system error macros to something (may be a number, maybe a constant -expression as on the GNU/Hurd), suppressing the unknown ones. The -output is piped into step 3. - -3. The cpp output is filtered with grep for only those lines which -contain a GPG_ERR_* marker. The output is piped into step 4. - -4. The filtered output is processed by mkerrcodes.awk, which produces -a table of constant expressions plus GPG_ERR_* code string symbols in -a format suitable for the C program mkerrcodes.c. At this point we -are crossing our fingers that the constant expressions produced by the -system do not contain GPG_ERR_* markers. The output is stored in -mkerrcodes.h. - -5. The file mkerrcodes.h is included by mkerrcodes.c, which is -compiled to a binary executable on the BUILD system. At this point we -are crossing our fingers that the constant expressions produced by the -system do not depend on the build platform anymore. The output is -post-processed by mkerrcodes2.awk and stored in "code-from-errno.h", -which is subsequently used in the library. - --- Marcus - - Copyright 2006 g10 Code GmbH - - This file is free software; as a special exception the author gives - unlimited permission to copy and/or distribute it, with or without - modifications, as long as this notice is preserved. - - This file is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY, to the extent permitted by law; without even the - implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |