Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/m4/curl-override.m4 @ 7:5ab937c03c27

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Apply full RELRO to all generated binaries. Also strip the generated binaries.
author Franz Glasner <fzglas.hg@dom66.de>
date Tue, 16 Sep 2025 12:37:32 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #***************************************************************************
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2 #***************************************************************************
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3
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4 # File version for 'aclocal' use. Keep it a single number.
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5 # serial 7
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6
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7 dnl CURL_OVERRIDE_AUTOCONF
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8 dnl -------------------------------------------------
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9 dnl Placing a call to this macro in configure.ac after
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10 dnl the one to AC_INIT will make macros in this file
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11 dnl visible to the rest of the compilation overriding
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12 dnl those from Autoconf.
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14 AC_DEFUN([CURL_OVERRIDE_AUTOCONF], [
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15 AC_BEFORE([$0],[AC_PROG_LIBTOOL])
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16 # using curl-override.m4
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17 ])
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19 dnl Override Autoconf's AC_LANG_PROGRAM (C)
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20 dnl -------------------------------------------------
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21 dnl This is done to prevent compiler warning
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22 dnl 'function declaration isn't a prototype'
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23 dnl in function main. This requires at least
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24 dnl a c89 compiler and does not support K&R.
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26 m4_define([AC_LANG_PROGRAM(C)],
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27 [$1
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28 int main (void)
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29 {
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30 $2
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31 ;
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32 return 0;
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33 }])
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35 dnl Override Autoconf's AC_LANG_CALL (C)
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36 dnl -------------------------------------------------
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37 dnl This is a backport of Autoconf's 2.60 with the
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38 dnl embedded comments that hit the resulting script
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39 dnl removed. This is done to reduce configure size
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40 dnl and use fixed macro across Autoconf versions.
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42 m4_define([AC_LANG_CALL(C)],
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43 [AC_LANG_PROGRAM([$1
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44 m4_if([$2], [main], ,
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45 [
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46 #ifdef __cplusplus
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47 extern "C"
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48 #endif
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49 char $2 ();])], [return $2 ();])])
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51 dnl Override Autoconf's AC_LANG_FUNC_LINK_TRY (C)
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52 dnl -------------------------------------------------
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53 dnl This is a backport of Autoconf's 2.60 with the
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54 dnl embedded comments that hit the resulting script
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55 dnl removed. This is done to reduce configure size
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56 dnl and use fixed macro across Autoconf versions.
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58 m4_define([AC_LANG_FUNC_LINK_TRY(C)],
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59 [AC_LANG_PROGRAM(
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60 [
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61 #define $1 innocuous_$1
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62 #ifdef __STDC__
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63 # include <limits.h>
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64 #else
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65 # include <assert.h>
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66 #endif
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67 #undef $1
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68 #ifdef __cplusplus
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69 extern "C"
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70 #endif
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71 char $1 ();
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72 #if defined __stub_$1 || defined __stub___$1
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73 choke me
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74 #endif
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75 ], [return $1 ();])])