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1 Makefile.embedded - hybrid DynCall makefiles for GNU, BSD and SUN make
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2 ======================================================================
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3
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4
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5 Brief overview
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6 --------------
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7 This is one of the latest build systems designed for DynCall.
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8 It was designed for being embeddable in bigger 'make' based systems.
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9 It uses a very simple structure and it does not require any 'configure' phase.
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10 Instead the user can specify the CFLAGS and LDFLAGS by himself.
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11 For a couple of platforms, the make system supports phony targets of popular
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12 operating-systems such as 'bsd'.
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13
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14 Building the library:
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15 ---------------------
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16 $ make -f Makefile.embedded <variant>
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17
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18 Building the tests:
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19 -------------------
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20 $ cd test ; make -f Makefile.embedded <variant>
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21
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22 Installation:
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23 -------------
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24 $ make -f Makefile.embedded PREFIX=/usr/local install
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25
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26 Installation with support for DESTDIR:
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27 --------------------------------------
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28 $ make -f Makefile.embedded DESTDIR=/tmp/staging PREFIX=/usr/local install
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29
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30
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31 Available variants:
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32 -------------------
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33 bsd Free/Net/Open/DragonFly/Mir BSD
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34 linux Linux
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35 osx Mac OS X
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36 osx-universal Mac OS X universal binaries (i386,x86_64 and ppc)
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37 sun SunOS and Sun Pro compiler
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38 sun-64bit SunOS and Sun Pro compiler for sparc64(? amd64)
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39 sun-gcc SunOS and GCC compiler
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40 sun-gcc-64bit SunOS and GCC compiler for sparc64 (? amd64)
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41 ios61 iOS SDK 6.1 armv7 (untested!)
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42 ios61-nothumb iOS SDK 6.1 armv7 -mno-thumb (untested!)
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43
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44 Tweaking the build:
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45 -------------------
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46 $ VAR1=<VALUE1> VAR2=<VALUE2> .. make -f Makefile.embedded <variant>
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47
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48 Adding a variant
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49 -----------------
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50 Currently we deal with two files to specify a custom target.
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51
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52 The top-level Makefile.embedded controls for building the libraries.
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53 Useful variables are AR, CC, CFLAGS and ASFLAGS.
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54
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55 The test/Makefile.embedded file controls for building the tests.
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56 The tests currently involve sometimes C++ and some platforms need
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57 to link with the math library. Others need the dynamic linker.
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58 Useful variables are CXX, CC, CCC (Sun), CFLAGS, CCFLAGS (Sun),
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59 CXXFLAGS andLDFLAGS.
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60
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61 Background
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62 ----------
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63 During the preparation for the public release of the R package 'rdyncall' I was
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64 looking for a way to get DynCall integrated into an existing Make system such
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65 as offered by R for build R packages.
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66
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67 It was inspired by the make files of Lua which are damn simple and
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68 don't need a configure but a user that knows the target platform name.
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69
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70 The source package can be configured automatically during compilation and
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71 does not require explicit configuration anymore using "*.S" files that
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72 are Assembly files which are preprocessed by the C Preprocessor.
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73
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74 This feature is available by GCC and SunPro compilers.
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75
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76 Limitations
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77 -----------
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78
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79 Mac OS X universal static libraries require to use
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80
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81 'libtool -static -o libname.a obj1.o obj2.o ...' instead of 'ar cru libname.a obj1.o obj2.o'.
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82 We use predefined variables AR and ARFLAGS.
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83 The variant osx-universal uses AR=libtool.
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84
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