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tools: use pkg-config when available to get SSL flags

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Instead of hardcoding -lssl -lcrypto as the flags needed to build
mkimage with FIT signature enabled, use pkg-config when
available. This allows to properly support cases where static linking
is used, which requires linking with -lz, since OpenSSL uses zlib
internally.

We gracefully fallback on the previous behavior of hardcoding -lssl
-lcrypto if pkg-config is not available or fails with an error.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2015-05-16 18:36:15 +02:00 committed by Tom Rini
parent af22ac660a
commit 4839836a12
1 changed files with 2 additions and 1 deletions
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3
tools/Makefile
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@ -122,7 +122,8 @@ endif
# MXSImage needs LibSSL
ifneq ($(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_FIT_SIGNATURE),)
HOSTLOADLIBES_mkimage += -lssl -lcrypto
HOSTLOADLIBES_mkimage += \
$(shell pkg-config --libs libssl libcrypto 2> /dev/null || echo "-lssl -lcrypto")
endif
HOSTLOADLIBES_dumpimage := $(HOSTLOADLIBES_mkimage)