which use CMake ○ C++ modules support ● Working with the community to improve building software ○ ISO standards ■ Dependency format ○ Pushing forward modules support in other build systems ■ xmake needed to order compilations ● Vendored into CMake for its Unix Makefiles generator ● dyndep support added to ninja, merged into 1.10 (released Jan 2020) 11C++ Modules: Example Target add_library(A) up ○ Object (uniqueness constraint) ○ Source file ○ Work directory ○ Arguments (no “command” support) ● Additional fields ○ For modules build graph ■ Provides (mapping of module name to BMI path)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 525 40 Unicode Input 527 41 Command-line Interface 528 41.1 Using arguments inside scripts . . . . . . . . . Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 525 40 Unicode Input 527 41 Command-line Interface 528 41.1 Using arguments inside scripts . . . . . . . . . Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 525 40 Unicode Input 527 41 Command-line Interface 528 41.1 Using arguments inside scripts . . . . . . . . . Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . .

String Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 7.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 7.4 Concatenation 38.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 489 39 Unicode Input 492 40 Command-line Interface 493 40.1 Using arguments inside scripts . . . . . . . . . 1069 57 LLVM Interface 1083CONTENTS x 58 C Standard Library 1084 59 StackTraces 1088 60 SIMD Support 1090 III Standard Library 1091 61 ArgTools 1092 61.1 Argument Handling . . . . . . . . . . .

String Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 7.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 7.4 Concatenation 38.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 489 39 Unicode Input 492 40 Command-line Interface 493 40.1 Using arguments inside scripts . . . . . . . . . 1069 57 LLVM Interface 1083CONTENTS x 58 C Standard Library 1084 59 StackTraces 1088 60 SIMD Support 1090 III Standard Library 1091 61 ArgTools 1092 61.1 Argument Handling . . . . . . . . . . .

String Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 536 40 Unicode Input 538 41 Command-line Interface 539CONTENTS viii 41.1 Using arguments inside scripts . . . Interface 1303 60 LLVM Interface 1320 61 C Standard Library 1321 62 StackTraces 1327 63 SIMD Support 1329 III Standard Library 1330 64 ArgTools 1331 64.1 Argument Handling . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 537 40 Unicode Input 539 41 Command-line Interface 540 41.1 Using arguments inside scripts . . . . . . . . . Interface 1301 60 LLVM Interface 1318 61 C Standard Library 1319 62 StackTraces 1325 63 SIMD Support 1327 III Standard Library 1328 64 ArgTools 1329 64.1 Argument Handling . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 536 40 Unicode Input 538 41 Command-line Interface 539 41.1 Using arguments inside scripts . . . . . . . . . Interface 1300 60 LLVM Interface 1317 61 C Standard Library 1318 62 StackTraces 1324 63 SIMD Support 1326 III Standard Library 1327 64 ArgTools 1328 64.1 Argument Handling . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 iCONTENTS ii 8.3 Unicode and UTF-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 8.4 Concatenation 39.5 Noteworthy differences from Common Lisp . . . . . . . . . . . . . . . . . . . . . . 536 40 Unicode Input 538 41 Command-line Interface 539 41.1 Using arguments inside scripts . . . . . . . . . Interface 1300 60 LLVM Interface 1317 61 C Standard Library 1318 62 StackTraces 1324 63 SIMD Support 1326 III Standard Library 1327 64 ArgTools 1328 64.1 Argument Handling . . . . . . . . . . .