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5bbe190b3b
Fixes below build error:
cc -g -Wall -DLWIP_DEBUG -pedantic -Werror -Wparentheses -Wsequence-point -Wswitch-default -Wextra -Wundef -Wshadow -Wpointer-arith -Wcast-qual -Wc++-compat -Wwrite-strings -Wold-style-definition -Wcast-align -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Wno-address -Wunreachable-code -Wuninitialized -Wlogical-op -I. -I../../.. -I../../../../lwip/src/include -I../../../ports/unix/port/include -I../../../../mbedtls/include -Wno-redundant-decls -DLWIP_HAVE_MBEDTLS=1 -c ../../../../lwip/src/apps/smtp/smtp.c
../../../../lwip/src/apps/smtp/smtp.c: In function ‘smtp_send_body_data_handler’:
../../../../lwip/src/apps/smtp/smtp.c:1487:41: error: cast discards ‘const’ qualifier from pointer target type [-Werror=cast-qual]
if((res = smtp_send_bodyh_data(pcb, (char **)&s->body, &s->body_len))
^
../../../../lwip/src/apps/smtp/smtp.c:1507:47: error: cast discards ‘const’ qualifier from pointer target type [-Werror=cast-qual]
((res = smtp_send_bodyh_data(pcb, (char **)&s->body, &s->body_len)) == BDHALLDATASENT)
^
cc1: all warnings being treated as errors
../../Common.allports.mk:94: recipe for target 'smtp.o' failed
make: *** [smtp.o] Error 1
Signed-off-by: Axel Lin <axel.lin@ingics.com>