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CMake: Configure: Cherry-pick more documentation and misc config vars from cmake-rdb branch.

This commit is contained in:
kestred 2013-12-13 11:02:37 -07:00
parent abb19ae689
commit 5c85d29d27
2 changed files with 69 additions and 7 deletions
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74
dtool/Config.cmake
View File

@ -12,13 +12,29 @@ else()
default .prc directory if the PRC_PATH and PRC_DIR environment variables
are not defined.")
endif()
if(PRC_DEFAULT_DIR AND PRC_DEFAULT_DIR_ABSOLUTE)
message("Using PRC_DEFAULT_DIR_ABSOLUTE instead of PRC_DEFAULT_DIR.")
endif()
set(PRC_DIR_ENVVARS "PANDA_PRC_DIR" CACHE STRING "")
set(PRC_PATH_ENVVARS "PANDA_PRC_PATH" CACHE STRING "")
set(PRC_PATH2_ENVVARS "" CACHE STRING "")
set(PRC_PATTERNS "*.prc" CACHE STRING "")
set(PRC_ENCRYPTED_PATTERNS "*.prc.pe" CACHE STRING "")
set(PRC_ENCRYPTION_KEY "" CACHE STRING "")
set(PRC_EXECUTABLE_PATTERNS "" CACHE STRING "")
set(PRC_EXECUTABLE_ARGS_ENVVAR "PANDA_PRC_XARGS" CACHE STRING "")
set(PRC_PUBLIC_KEYS_FILENAME "" CACHE STRING "")
set(PRC_RESPECT_TRUST_LEVEL CACHE STRING "")
set(PRC_DCONFIG_TRUST_LEVEL 0 CACHE STRING
"The trust level value for any legacy (DConfig) variables.")
set(PRC_INC_TRUST_LEVEL 0 CACHE STRING
"The amount by which we globally increment the trust level.")
if(PRC_DEFAULT_DIR AND PRC_DEFAULT_DIR_ABSOLUTE)
message("Using PRC_DEFAULT_DIR_ABSOLUTE instead of PRC_DEFAULT_DIR.")
endif()
mark_as_advanced(PRC_DEFAULT_DIR PRC_DEFAULT_DIR_ABSOLUTE PRC_DIR_ENVVARS
PRC_PATH_ENVVARS PRC_PATH2_ENVVARS PRC_PATTERNS PRC_ENCRYPTED_PATTERNS
PRC_ENCRYPTION_KEY PRC_EXECUTABLE_PATTERNS PRC_EXECUTABLE_ARGS_ENVVAR
PRC_PUBLIC_KEYS_FILENAME PRC_RESPECT_TRUST_LEVEL
PRC_DCONFIG_TRUST_LEVEL PRC_INC_TRUST_LEVEL)
# PRC special values for config headers
if(PRC_DEFAULT_DIR_ABSOLUTE)
@ -48,7 +64,12 @@ endif()
find_package(Threads)
if(THREADS_FOUND)
# Add basic use flag for threading
option(BUILD_THREADS "If on, compile Panda3D with threading support." ON)
option(BUILD_THREADS
"If on, compile Panda3D with threading support.
Building in support for threading will enable Panda to take
advantage of multiple CPU's if you have them (and if the OS
supports kernel threads running on different CPU's), but it will
slightly slow down Panda for the single CPU case." ON)
if(BUILD_THREADS)
set(HAVE_THREADS TRUE)
else()
@ -80,10 +101,24 @@ if(HAVE_THREADS)
set(CMAKE_CXX_FLAGS_MINSIZEREL "-pthread")
endif()
option(BUILD_SIMPLE_THREADS "If on, compile with simulated threads." OFF)
option(BUILD_SIMPLE_THREADS
"If on, compile with simulated threads. Threads, by default, use
OS-provided threading constructs, which usually allows for full
multithreading support (i.e. the program can use multiple CPU's).
On the other hand, compiling in this full OS-provided support can
impose some substantial runtime overhead, making the application
run slower on a single-CPU machine. This settings avoid the overhead,
but still gain some of the basic functionality of threads." OFF)
if(BUILD_SIMPLE_THREADS)
message(STATUS "Compilation will include simulated threading support.")
option(BUILD_OS_SIMPLE_THREADS "If on, OS threading constructs will be used to perform context switches." ON)
option(BUILD_OS_SIMPLE_THREADS
"If on, OS threading constructs will be used to perform context switches.
A mutex is used to ensure that only one thread runs at a time, so the
normal SIMPLE_THREADS optimizations still apply, and the normal
SIMPLE_THREADS scheduler is used to switch between threads (instead
of the OS scheduler). This may be more portable and more reliable,
but it is a hybrid between user-space threads and os-provided threads." ON)
set(SIMPLE_THREADS TRUE)
if(BUILD_OS_SIMPLE_THREADS)
@ -126,6 +161,33 @@ endif()
message(STATUS "")
message(STATUS "See dtool_config.h for more details about the specified configuration.\n")
### Miscellaneous configuration
if(CMAKE_BUILD_TYPE MATCHES "MinSizeRel")
unset(BUILD_WITH_DEFAULT_FONT CACHE)
option(BUILD_WITH_DEFAULT_FONT
"If on, compiles in a default font, so that every TextNode will always
have a font available without requiring the user to specify one.
When turned off, the generated libary will save a few kilobytes." OFF)
else()
option(BUILD_WITH_DEFAULT_FONT
"If on, compiles in a default font, so that every TextNode will always
have a font available without requiring the user to specify one.
When turned off, the generated libary will save a few kilobytes." ON)
endif()
if(BUILD_WITH_DEFAULT_FONT)
set(COMPILE_IN_DEFAULT_FONT TRUE)
endif()
option(BUILD_PREFER_STDFLOAT
"Define this true to compile a special version of Panda to use a
'double' floating-precision type for most internal values, such as
positions and transforms, instead of the standard single-precision
'float' type. This does not affect the default numeric type of
vertices, which is controlled by the runtime config variable
vertices-float64." OFF)
if(BUILD_PREFER_STDFLOAT)
set(STDFLOAT_DOUBLE TRUE)
endif()
### Check for system support of various values ###
# Do we have all these header files?

2
dtool/Packages.cmake
View File

@ -1,5 +1,5 @@
message(STATUS "")
message("Configuring support for the following optional third-party packages:")
message(STATUS "Configuring support for the following optional third-party packages:")
# Settings to change USE_PACKAGE behavior (these options override cached values)
set(CONFIG_ENABLE_EVERYTHING Off)