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-rw-r--r--Source/cmDocumentGeneratorExpressions.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/Source/cmDocumentGeneratorExpressions.h b/Source/cmDocumentGeneratorExpressions.h
index 5359013..5d6553d 100644
--- a/Source/cmDocumentGeneratorExpressions.h
+++ b/Source/cmDocumentGeneratorExpressions.h
@@ -16,6 +16,8 @@
"Generator expressions are evaluted during build system generation " \
"to produce information specific to each build configuration. " \
"Valid expressions are:\n" \
+ " $<0:...> = empty string (ignores \"...\")\n" \
+ " $<1:...> = content of \"...\"\n" \
" $<CONFIGURATION> = configuration name\n" \
" $<TARGET_FILE:tgt> = main file (.exe, .so.1.2, .a)\n" \
" $<TARGET_LINKER_FILE:tgt> = file used to link (.a, .lib, .so)\n" \
@@ -25,6 +27,12 @@
"versions can produce the directory and file name components:\n" \
" $<TARGET_FILE_DIR:tgt>/$<TARGET_FILE_NAME:tgt>\n" \
" $<TARGET_LINKER_FILE_DIR:tgt>/$<TARGET_LINKER_FILE_NAME:tgt>\n" \
- " $<TARGET_SONAME_FILE_DIR:tgt>/$<TARGET_SONAME_FILE_NAME:tgt>\n"
+ " $<TARGET_SONAME_FILE_DIR:tgt>/$<TARGET_SONAME_FILE_NAME:tgt>\n" \
+ "Boolean expressions:\n" \
+ " $<AND:?[,?]...> = '1' if all '?' are '1', else '0'\n" \
+ " $<OR:?[,?]...> = '0' if all '?' are '0', else '1'\n" \
+ " $<NOT:?> = '0' if '?' is '1', else '1'\n" \
+ "where '?' is always either '0' or '1'.\n" \
+ ""
#endif