diff --git a/dev-libs/icu/icu74-74.1.recipe b/dev-libs/icu/icu74-74.1.recipe
index 7fcf8894e..52247a831 100644
--- a/dev-libs/icu/icu74-74.1.recipe
+++ b/dev-libs/icu/icu74-74.1.recipe
@@ -49,7 +49,7 @@ CHECKSUM_SHA256_2="67d5ab39c5187e1dd0fed60a3fe52794dce9784b4c045cb85e19f5d317fd7
 SOURCE_DIR="icu"
 PATCHES="icu74-$portVersion.patchset"
 
-ARCHITECTURES="?all !x86_gcc2 ?arm ?sparc ?arm64 ?riscv64 x86_64"
+ARCHITECTURES="?all !x86_gcc2 ?arm ?sparc ?arm64 ppc ?riscv64 x86_64"
 SECONDARY_ARCHITECTURES="x86"
 
 PROVIDES="
diff --git a/media-libs/libpng/libpng16-1.6.40.recipe b/media-libs/libpng/libpng16-1.6.40.recipe
index 0eb1b464f..36f6bae58 100644
--- a/media-libs/libpng/libpng16-1.6.40.recipe
+++ b/media-libs/libpng/libpng16-1.6.40.recipe
@@ -14,7 +14,7 @@ SOURCE_URI="https://downloads.sourceforge.net/libpng/libpng-$portVersion.tar.gz"
 CHECKSUM_SHA256="8f720b363aa08683c9bf2a563236f45313af2c55d542b5481ae17dd8d183bb42"
 SOURCE_DIR="libpng-$portVersion"
 
-ARCHITECTURES="all ?ppc"
+ARCHITECTURES="all"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"
 
 # define libVersion as xy.z.0 when portVersion is x.y.z.
diff --git a/net-misc/curl/curl-8.8.0.recipe b/net-misc/curl/curl-8.8.0.recipe
index 6c9879c90..f6f0900ae 100644
--- a/net-misc/curl/curl-8.8.0.recipe
+++ b/net-misc/curl/curl-8.8.0.recipe
@@ -14,7 +14,7 @@ SOURCE_URI="https://github.com/curl/curl/releases/download/curl-${portVersion//\
 CHECKSUM_SHA256="40d3792d38cfa244d8f692974a567e9a5f3387c547579f1124e95ea2a1020d0d"
 ADDITIONAL_FILES="curl.rdef"
 
-ARCHITECTURES="all ?arm ?ppc"
+ARCHITECTURES="all ?arm"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"
 
 libVersion="4.8.0"
diff --git a/sys-devel/bison/bison-3.8.2.recipe b/sys-devel/bison/bison-3.8.2.recipe
index 4b736157d..65977f0b9 100644
--- a/sys-devel/bison/bison-3.8.2.recipe
+++ b/sys-devel/bison/bison-3.8.2.recipe
@@ -17,7 +17,7 @@ SOURCE_URI="https://ftpmirror.gnu.org/bison/bison-$portVersion.tar.xz
 	https://ftp.gnu.org/gnu/bison/bison-$portVersion.tar.xz"
 CHECKSUM_SHA256="9bba0214ccf7f1079c5d59210045227bcf619519840ebfa80cd3849cff5a5bf2"
 
-ARCHITECTURES="all ?x86_gcc2 ?ppc ?sparc ?m68k"
+ARCHITECTURES="all ?x86_gcc2 ?sparc ?m68k"
 SECONDARY_ARCHITECTURES="x86 ?x86_gcc2"
 
 PROVIDES="
diff --git a/sys-libs/zlib/zlib-1.3.recipe b/sys-libs/zlib/zlib-1.3.recipe
index 17b62a1d3..ee5ec1ec5 100644
--- a/sys-libs/zlib/zlib-1.3.recipe
+++ b/sys-libs/zlib/zlib-1.3.recipe
@@ -17,7 +17,7 @@ SOURCE_URI="https://zlib.net/fossils/zlib-$portVersion.tar.gz"
 CHECKSUM_SHA256="ff0ba4c292013dbc27530b3a81e1f9a813cd39de01ca5e0f8bf355702efa593e"
 PATCHES="zlib-$portVersion.patchset"
 
-ARCHITECTURES="all ?ppc"
+ARCHITECTURES="all"
 SECONDARY_ARCHITECTURES="x86"
 
 libVersion="$portVersion"