| [e7839be] | 1 | <HTML><HEAD> |
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| 2 | <TITLE>Survex Hacker's Guide</TITLE> |
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| 3 | <STYLE type="text/css"><!-- |
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| 4 | BODY, TD, CENTER, UL, OL {font-family: sans-serif;} |
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| 5 | --> |
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| 6 | </STYLE> |
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| 7 | </HEAD><BODY BGCOLOR=white TEXT=black> |
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| 8 | <H1>Hacking Survex</H1> |
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| 9 | |
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| 10 | <p>(That's hacking in the "tinkering with code" sense, not in the |
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| 11 | "breaking into other people's computer systems" sense). |
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| 12 | |
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| 13 | <p>This is currently a random collection of notes that need to be written |
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| 14 | down while I remember. With time it should evolve into a more |
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| 15 | coherent document. If you have any questions which this should answer |
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| 16 | but doesn't then ask me and I'll add them. |
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| 17 | |
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| 18 | <H2>Network code debugging</H2> |
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| 19 | |
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| 20 | <P>You can pick which network simplifications are attempted using "-z" |
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| 21 | with an argument listing code letters. So: |
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| 22 | |
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| 23 | <ul> |
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| 24 | <li>-z= no special simplifications (articulation still performed) |
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| 25 | <li>-z=l remove "lollipops" |
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| 26 | <li>-z=p remove parallel legs |
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| 27 | <li>-z=d convert deltas to stars |
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| 28 | </ul> |
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| 29 | |
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| 30 | <P>And you can combine these in any combination: |
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| 31 | |
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| 32 | <ul> |
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| 33 | <li>-z=lp remove "lollipops" and parallel legs |
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| 34 | <li>-z=lpd remove "lollipops" and parallel legs; convert deltas to stars |
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| 35 | </ul> |
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| 36 | |
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| 37 | <P>"-z=lpd" is the default (in 0.99 at least - more transformations may |
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| 38 | conceivably be added in future, although the simple common cases are |
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| 39 | already covered). |
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| 40 | |
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| 41 | <H2>Developing on Unix Platforms</H2> |
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| 42 | |
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| [ce243b0] | 43 | <P>You'll need automake 1.14 or later |
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| [9d6b05a] | 44 | and autoconf 2.59 or later (autoconf 2.64, 2.71 and 2.72 have all |
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| [9bf7aa33] | 45 | been used successfully). |
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| [c372fc9] | 46 | |
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| [fd0e32a] | 47 | <p>The wxWidgets library is used for aven's UI. Currently >= 3.2.0 is |
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| [1ed5c4e] | 48 | supported. |
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| 49 | |
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| [fd0e32a] | 50 | <p>The PROJ library is used for coordinate conversions. Currently >= 7.2.0 is |
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| [1ed5c4e] | 51 | supported. |
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| 52 | |
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| 53 | <P>The Perl Locale::PO module is used for process message translation files. |
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| 54 | |
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| [d1aefbc] | 55 | <P>For building the documentation you'll need sphinx-doc (Debian/Ubuntu package |
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| 56 | <tt>python3-sphinx</tt>) and w3m. |
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| [e7839be] | 57 | |
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| [29e5a96] | 58 | <P>And for building unifont.pixelfont, you'll need unifont installed. |
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| 59 | |
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| 60 | <P>On Debian, you can install the required packages using: |
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| 61 | |
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| 62 | <pre> |
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| [fd0e32a] | 63 | sudo apt-get install autoconf automake liblocale-po-perl libproj-dev libwxgtk3.2-dev inkscape netpbm python3-sphinx w3m unifont |
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| [29e5a96] | 64 | </pre> |
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| [6127c82] | 65 | |
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| [e7839be] | 66 | <H2>Building on Non-Unix Platforms</H2> |
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| 67 | |
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| [c372fc9] | 68 | <H3>Mingw (Microsoft Windows)</H3> |
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| [e7839be] | 69 | |
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| [f5e6be8] | 70 | <p>Survex can be built in an MSYS2+mingw64 environment - since 1.4.9 the |
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| 71 | pre-built installer for Microsoft Windows is built in such an environment |
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| 72 | by a CI job running on Github Actions. |
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| 73 | </p> |
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| 74 | |
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| 75 | <p> |
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| 76 | It should also be possible to use a Linux-hosted cross-compiler, which is |
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| 77 | how we used to built releases, but this requires cross-building a lot of |
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| 78 | required libraries so we gave up on doing this. Some notes on this are |
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| 79 | left below in case anyone wants to try. |
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| 80 | </p> |
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| 81 | |
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| 82 | <p> |
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| 83 | I use the packaged cross-compiler in the debian testing/unstable distribution: |
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| 84 | </p> |
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| [adceff5] | 85 | |
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| [bd285e5a] | 86 | <pre> |
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| 87 | sudo apt-get install mingw-w64-i686-dev |
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| 88 | </pre> |
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| [e7839be] | 89 | |
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| [d6a770d] | 90 | <p> |
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| [f5e6be8] | 91 | Then install the various libraries by compiling from source. For wxWidgets |
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| [3e85309] | 92 | I apply a |
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| [b1c66e1] | 93 | <a href="https://survex.com/software/wxWidgets-3.2.4.patch">patch</a> to |
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| [3e85309] | 94 | disable a pointless and annoying compiler ABI check |
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| [38bc415] | 95 | (with this check aven stops working each time my cross compiler package is |
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| 96 | upgraded to a new GCC version; without it everything works fine). |
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| [853438c] | 97 | </p> |
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| 98 | |
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| 99 | <p> |
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| 100 | Then I configure, build and install with: |
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| [bd285e5a] | 101 | </p> |
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| 102 | |
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| 103 | <pre> |
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| [d1aefbc] | 104 | ./configure --prefix=/usr/i686-w64-mingw32 --host i686-w64-mingw32 --with-msw --with-opengl --enable-display --disable-shared host_alias=i686-w64-mingw32 |
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| [bd285e5a] | 105 | make |
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| 106 | sudo make install |
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| 107 | </pre> |
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| 108 | |
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| 109 | <p> |
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| [7576825] | 110 | For sqlite (needed by PROJ): |
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| [d6a770d] | 111 | </p> |
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| 112 | |
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| [bd285e5a] | 113 | <pre> |
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| [7576825] | 114 | wget https://www.sqlite.org/2021/sqlite-autoconf-3360000.tar.gz |
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| 115 | tar xvf sqlite-autoconf-3360000.tar.gz |
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| [bd285e5a] | 116 | mkdir BUILD |
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| 117 | cd BUILD |
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| [7576825] | 118 | ../configure --prefix=/usr/i686-w64-mingw32 --host i686-w64-mingw32 --disable-shared --disable-fts4 --disable-fts5 --disable-json1 --disable-rtree host_alias=i686-w64-mingw32 |
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| [bd285e5a] | 119 | make |
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| 120 | sudo make install |
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| 121 | </pre> |
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| 122 | |
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| 123 | <p> |
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| [9cf9de0] | 124 | Sadly newer versions of PROJ have to be built with cmake. For PROJ 9.3.0 |
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| 125 | I used the following (TIFF is apparently useful for some grids, but would also |
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| 126 | need libtiff): |
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| [7576825] | 127 | </p> |
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| 128 | |
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| 129 | <pre> |
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| 130 | mkdir BUILD |
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| 131 | cd BUILD |
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| [9cf9de0] | 132 | cmake .. -DCMAKE_TOOLCHAIN_FILE=~/git/survex/cross-mingw.cmake -DCMAKE_INSTALL_PREFIX=/usr/i686-w64-mingw32 -DENABLE_CURL=OFF -DENABLE_TIFF=OFF -DBUILD_PROJSYNC=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON -DFETCHCONTENT_FULLY_DISCONNECTED=ON -DBUILD_TESTING=OFF |
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| [7576825] | 133 | make |
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| 134 | sudo make install |
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| 135 | </pre> |
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| 136 | |
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| [dc74a56] | 137 | <p>where <tt>cross-mingw.cmake</tt> contains:</p> |
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| [9cf9de0] | 138 | |
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| 139 | <pre> |
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| 140 | # the name of the target operating system |
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| 141 | set(CMAKE_SYSTEM_NAME Windows) |
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| 142 | |
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| 143 | # which compilers to use for C and C++ |
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| 144 | set(CMAKE_C_COMPILER i686-w64-mingw32-gcc) |
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| 145 | set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++) |
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| 146 | |
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| 147 | # where is the target environment located |
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| 148 | set(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32) |
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| 149 | |
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| 150 | # adjust the default behaviour of the FIND_XXX() commands: |
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| 151 | # search programs in the host environment |
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| 152 | set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) |
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| 153 | |
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| 154 | # search headers and libraries in the target environment |
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| 155 | set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) |
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| 156 | set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) |
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| 157 | </pre> |
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| 158 | |
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| [7576825] | 159 | <p> |
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| 160 | For ffmpeg 4.4.1: |
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| [bd285e5a] | 161 | </p> |
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| 162 | |
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| 163 | <pre> |
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| 164 | sudo apt-get install yasm |
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| 165 | mkdir BUILD |
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| 166 | cd BUILD |
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| [86801ff] | 167 | ../configure --prefix=/usr/i686-w64-mingw32 --cross-prefix=i686-w64-mingw32- --enable-cross-compile --target-os=mingw32 --arch=i686 --disable-shared --disable-decoders --disable-demuxers --disable-programs --disable-network --disable-bsfs --disable-protocols --disable-devices |
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| [bd285e5a] | 168 | make |
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| 169 | sudo make install |
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| 170 | </pre> |
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| [d6a770d] | 171 | |
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| [f5e6be8] | 172 | <p> |
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| 173 | You'll also need to install GDAL, which requires a lot of other libraries |
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| 174 | installed to build. I gave up at this point. |
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| 175 | </p> |
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| [e7839be] | 176 | |
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| [9fe7af4f] | 177 | <H2>Microsoft Windows Installer Builder</H2> |
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| 178 | |
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| [d84d9e5] | 179 | <p>We use <A HREF="https://jrsoftware.org/isinfo.php">InnoSetup</A> to |
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| [f5e6be8] | 180 | build the MS Windows Installer. Since 1.4.9 we use the InnoSetup version |
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| 181 | which is pre-installed in the Github CI images. |
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| 182 | </p> |
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| [ebcdad9] | 183 | |
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| [f5e6be8] | 184 | <p> |
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| 185 | Survex 1.4.8 was built using InnoSetup 6.2.2. |
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| 186 | </p> |
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| 187 | |
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| 188 | <p> |
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| 189 | Here are some random notes on the old cross-building approach: |
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| 190 | </p> |
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| [9fe7af4f] | 191 | |
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| [85f3565] | 192 | <H3>Packages Needed</H3> |
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| 193 | |
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| [7576825] | 194 | <P>On Debian unstable/testing: |
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| [adceff5] | 195 | |
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| 196 | <pre> |
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| [fd0e32a] | 197 | sudo apt-get install wine wx3.2-i18n |
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| [adceff5] | 198 | </pre> |
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| 199 | |
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| 200 | <P>And then run: |
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| [85f3565] | 201 | |
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| [adceff5] | 202 | <pre> |
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| [fc1d89b] | 203 | wine ~/Downloads/innosetup-6.2.2.exe |
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| [adceff5] | 204 | </pre> |
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| [85f3565] | 205 | |
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| [9fe7af4f] | 206 | <H3>Translations</H3> |
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| 207 | |
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| [ebcdad9] | 208 | <P>In addition to the translations included with InnoSetup as standard, we also |
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| [8b3362b] | 209 | add these, which you can find in the <code>lib</code> subdirectory of Survex's |
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| [e367554] | 210 | source tree: |
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| [9fe7af4f] | 211 | |
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| 212 | <UL> |
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| [9990aab] | 213 | <li>ChineseSimplified.isl (6.1.0+) |
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| 214 | <li>ChineseTraditional.isl (6.1.0+) |
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| 215 | <li>EnglishBritish.isl (6.1.0+) |
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| 216 | <li>Greek.isl (6.1.0+) |
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| 217 | <li>Indonesian.isl (6.1.0+) |
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| [fc1d89b] | 218 | <li>Romanian.isl (6.1.0+) |
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| [9fe7af4f] | 219 | </UL> |
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| 220 | |
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| [9990aab] | 221 | These are taken from the <a href="https://jrsoftware.org/files/istrans/">Inno |
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| 222 | Setup Translations</a> page. |
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| [317c11b] | 223 | |
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| [9fe7af4f] | 224 | <H3>survex.iss</H3> |
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| 225 | |
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| 226 | <P>This file is generated by configure (from the template survex.iss.in). |
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| 227 | We could instead have a static survex.iss which uses #include to pull in |
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| 228 | a file with the Survex version info in, but the current method works well |
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| 229 | enough so we'll stick with it for now (I suspect #include was introduced since |
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| 230 | we started using InnoSetup). |
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| 231 | |
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| [e7839be] | 232 | </BODY></HTML> |
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