WebI'm not trying to pass them all as a single argument. The shell variable should expand to multiple arguments. I don't understand the objection considering this works perfectly fine with regular flags like --enable-shared.Either way, I found the correct solution to my issue lay outside of directly passing CFLAGS="-fPIC" (--with-pic was the correct configure flag in … WebIn this example I have compiled gcc 5.3 and most programs compile ok, for example compiling httpd from source works no problems. But I keep getting errors relating to what I think is -std=c++11. All the posts I read say to pass -std=c++11 and I have tried CXXFLAGS=-std=c++11 CXX=-std=c++11 CFLAGS=-std=c++11 but the errors persist.
How to write a Makefile - Cornell University
WebUse ‘ automake -Woverride ’ to diagnose such mistakes. Even something like CPPFLAGS = -DDATADIR=\"$ (datadir)\" @CPPFLAGS@ is erroneous. Although this preserves configure ’s value of CPPFLAGS, the definition of DATADIR will disappear if a user attempts to override CPPFLAGS from the make command line. AM_CPPFLAGS = -DDATADIR=\"$ … WebUsing variables like this gives you full control over the ordering of the flags. For instance, if there is a flag in $ (WARNINGCFLAGS) that you want to negate for a particular target, … simply psychology ethics
Flag Variables Ordering (automake) - GNU
Webccflags-remove-y, asflags-remove-y These flags are used to remove particular flags for the compiler, assembler invocations. Example: ccflags-remove-$ (CONFIG_MCOUNT) += -pg CFLAGS_$@, AFLAGS_$@ CFLAGS_$@ and AFLAGS_$@ only apply to commands in current kbuild makefile. $ (CFLAGS_$@) specifies per-file options for $ (CC). WebAug 5, 2004 · Distribution: Ubuntu 7.04. Posts: 1,994. Rep: -O2 and -O3 does usually make a difference. In general: -O1 performs only optimisations that don't effect the compile time much. -O2 performs optimisations without trading space for speed. -O3 performs maximal speed optimisation. -Os tries to make the executable as small as possible. WebCFLAGS enables the addition of switches for the C compiler, while CXXFLAGS is meant to be used when invoking a C++ compiler. Similarly, a variable CPPFLAGS exists with … simply psychology diathesis stress model