Step 1: I configured avr with gcc-4.7.0, with binutils-2.22 /cygdrive/d/avr_new/gcc-4.7.0/gcc-4.7.0/configure --target=c816 --prefix=/cygdrive/d/avr_new/gcc-install --program-prefix=avr- --enable-languages="c" --enable-checking --with-ld=/cygdrive/d/newport/binutil/install/bin/avr-ld.exe --with-as=/cygdrive/d/newport/binutil/install/bin/avr-as.exe CFLAGS="-g -pg -O2 -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr" LDFLAGS=-pg --disable-shared --disable-decimal-float --disable-threads --disable-libmudflap --disable-libssp --disable-libgomp Step 2: make in make i am getting the error of avr-stdint.h in ../gcc/config/avr. When i added this file in ../gcc/config/avr then again run 'make' command i am getting this error: gcc -c -DIN_GCC_FRONTEND -g -pg -O2 -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wc++-compat -fno-common -DHAVE_CONFIG_H -I. -Ic-family -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/c-family -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/../include -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/../libcpp/include -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/../libdecnumber -I/cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/../libdecnumber/dpd -I../libdecnumber /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/c-family/c-common.c -o c-family/c-common.o In file included from /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/c-family/c-common.c:4645:0: /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def: In function ‘c_define_builtins’: /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:35:76: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:36:99: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:35:1: error: ‘DEF_BUILTIN’ undeclared (first use in this function) /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:35:1: note: each undeclared identifier is reported only once for each function it appears in /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:36:1: error: expected ‘;’ before ‘DEF_BUILTIN’ /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:37:100: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:38:88: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:39:90: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:43:103: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:44:98: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:45:99: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:46:100: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:49:94: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:50:122: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/config/avr/builtins.def:51:124: error: macro "DEF_BUILTIN" requires 11 arguments, but only 5 given /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/c-family/c-common.c: At top level: /cygdrive/d/c816_new/gcc-4.7.0/gcc-4.7.0/gcc/c-family/c-common.c:5184:1: warning: ‘def_builtin_1’ defined but not used Makefile:1054: recipe for target `c-family/c-common.o' failed make[2]: *** [c-family/c-common.o] Error 1 I can't understand what to do please give me solution how we can activate '-pg' in avr for profiling information -- View this message in context: http://old.nabble.com/how-can-i-give-support-of-%27-pg%27-flag-in-avr-with-gcc-4.7.0-to-achive-the-profiling-information-of-source-code-tp34116146p34116146.html Sent from the gcc - Help mailing list archive at Nabble.com.