diff --git a/lensfun/build/tibs/compiler/gcc.mak b/lensfun/build/tibs/compiler/gcc.mak

index 928f99c..cbc5b71 100644

--- a/lensfun/build/tibs/compiler/gcc.mak

+++ b/lensfun/build/tibs/compiler/gcc.mak

@@ -11,7 +11,7 @@ ifneq ($(TARGET),windows)

 GCC.CFLAGS.SHARED ?= -fPIC

 endif

-GCC.CFLAGS.release = -s -O3 -fomit-frame-pointer -funroll-loops

+GCC.CFLAGS.release = -g -O3 -fomit-frame-pointer -funroll-loops

 GCC.CFLAGS.debug = -D__DEBUG__ -g

 ifeq ($(ARCH),arm)

@@ -30,7 +30,7 @@ GCC.LD ?= g++

 GCC.LDFLAGS = $(GCC.LDFLAGS.$(MODE))

 GCC.LDFLAGS.LIBS = $(LDLIBS) -lm

-GCC.LDFLAGS.release = -s

+GCC.LDFLAGS.release = -g

 GCC.LDFLAGS.debug = -gdwarf-2 -g3

 GCC.LINKLIB = $(if $(findstring $L,$1),,$(if $(findstring /,$1),$1,-l$1))

diff --git a/lensfun/tools/makedep/BUILDING b/lensfun/tools/makedep/BUILDING

index 5167b6f..f1bc088 100644

--- a/lensfun/tools/makedep/BUILDING

+++ b/lensfun/tools/makedep/BUILDING

@@ -1,4 +1,4 @@

 To build the tool, just compile all the .cpp file together into a executable called

 makedep{.exe}. With the GNU C compiler this is just:

-g++ -s -O3 -fomit-frame-pointer -fno-exceptions -fno-rtti -o makedep *.cpp

+g++ -g -O3 -fomit-frame-pointer -fno-exceptions -fno-rtti -o makedep *.cpp