1llvm-config - Print LLVM compilation options 2============================================ 3 4 5SYNOPSIS 6-------- 7 8 9**llvm-config** *option* [*components*...] 10 11 12DESCRIPTION 13----------- 14 15 16**llvm-config** makes it easier to build applications that use LLVM. It can 17print the compiler flags, linker flags and object libraries needed to link 18against LLVM. 19 20 21EXAMPLES 22-------- 23 24 25To link against the JIT: 26 27 28.. code-block:: sh 29 30 g++ `llvm-config --cxxflags` -o HowToUseJIT.o -c HowToUseJIT.cpp 31 g++ `llvm-config --ldflags` -o HowToUseJIT HowToUseJIT.o \ 32 `llvm-config --libs engine bcreader scalaropts` 33 34 35 36OPTIONS 37------- 38 39 40 41**--version** 42 43 Print the version number of LLVM. 44 45 46 47**-help** 48 49 Print a summary of **llvm-config** arguments. 50 51 52 53**--prefix** 54 55 Print the installation prefix for LLVM. 56 57 58 59**--src-root** 60 61 Print the source root from which LLVM was built. 62 63 64 65**--obj-root** 66 67 Print the object root used to build LLVM. 68 69 70 71**--bindir** 72 73 Print the installation directory for LLVM binaries. 74 75 76 77**--includedir** 78 79 Print the installation directory for LLVM headers. 80 81 82 83**--libdir** 84 85 Print the installation directory for LLVM libraries. 86 87 88 89**--cxxflags** 90 91 Print the C++ compiler flags needed to use LLVM headers. 92 93 94 95**--ldflags** 96 97 Print the flags needed to link against LLVM libraries. 98 99 100 101**--libs** 102 103 Print all the libraries needed to link against the specified LLVM 104 *components*, including any dependencies. 105 106 107 108**--libnames** 109 110 Similar to **--libs**, but prints the bare filenames of the libraries 111 without **-l** or pathnames. Useful for linking against a not-yet-installed 112 copy of LLVM. 113 114 115 116**--libfiles** 117 118 Similar to **--libs**, but print the full path to each library file. This is 119 useful when creating makefile dependencies, to ensure that a tool is relinked if 120 any library it uses changes. 121 122 123 124**--components** 125 126 Print all valid component names. 127 128 129 130**--targets-built** 131 132 Print the component names for all targets supported by this copy of LLVM. 133 134 135 136**--build-mode** 137 138 Print the build mode used when LLVM was built (e.g. Debug or Release) 139 140 141 142 143COMPONENTS 144---------- 145 146 147To print a list of all available components, run **llvm-config 148--components**. In most cases, components correspond directly to LLVM 149libraries. Useful "virtual" components include: 150 151 152**all** 153 154 Includes all LLVM libraries. The default if no components are specified. 155 156 157 158**backend** 159 160 Includes either a native backend or the C backend. 161 162 163 164**engine** 165 166 Includes either a native JIT or the bitcode interpreter. 167 168 169 170 171EXIT STATUS 172----------- 173 174 175If **llvm-config** succeeds, it will exit with 0. Otherwise, if an error 176occurs, it will exit with a non-zero value. 177